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52521180625 = 548921032
BaseRepresentation
bin110000111010100000…
…011001110111010001
312000120021212102021001
4300322200121313101
51330030410240000
640043343102001
73536344445404
oct607240316721
9160507772231
1052521180625
1120301923401
12a2192a1901
134c501a6a94
1427834d5d3b
151575da646a
hexc3a819dd1

52521180625 has 45 divisors (see below), whose sum is σ = 67026859383. Its totient is φ = 41141496000.

The previous prime is 52521180611. The next prime is 52521180637. The reversal of 52521180625 is 52608112525.

The square root of 52521180625 is 229175.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 51021322641 + 1499857984 = 225879^2 + 38728^2 .

It is not a de Polignac number, because 52521180625 - 225 = 52487626193 is a prime.

It is a super-4 number, since 4×525211806254 (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 509914324 + ... + 509914426.

Almost surely, 252521180625 is an apocalyptic number.

52521180625 is the 229175-th square number.

52521180625 is the 114588-th centered octagonal number.

It is an amenable number.

52521180625 is a deficient number, since it is larger than the sum of its proper divisors (14505678758).

52521180625 is an frugal number, since it uses more digits than its factorization.

52521180625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 52521180625 in words is "fifty-two billion, five hundred twenty-one million, one hundred eighty thousand, six hundred twenty-five".

Divisors: 1 5 25 89 103 125 445 515 625 2225 2575 7921 9167 10609 11125 12875 39605 45835 53045 55625 64375 198025 229175 265225 815863 944201 990125 1145875 1326125 4079315 4721005 4950625 5729375 6630625 20396575 23605025 84033889 101982875 118025125 420169445 509914375 590125625 2100847225 10504236125 52521180625