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52551215525 = 52832233372
BaseRepresentation
bin110000111100010010…
…111110100110100101
312000122101101100101202
4300330102332212211
51330111102344100
640050334532245
73540160650614
oct607422764645
9160571340352
1052551215525
1120317878036
12a227367085
134c56491903
1427874b387b
15157883a7d5
hexc3c4be9a5

52551215525 has 36 divisors (see below), whose sum is σ = 66441497472. Its totient is φ = 41225506560.

The previous prime is 52551215501. The next prime is 52551215537.

52551215525 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 52551215525 - 210 = 52551214501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 155938157 + ... + 155938493.

It is an arithmetic number, because the mean of its divisors is an integer number (1845597152).

Almost surely, 252551215525 is an apocalyptic number.

It is an amenable number.

52551215525 is a deficient number, since it is larger than the sum of its proper divisors (13890281947).

52551215525 is an equidigital number, since it uses as much as digits as its factorization.

52551215525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 648 counting only the distinct ones).

The product of its digits is 125000, while the sum is 38.

The spelling of 52551215525 in words is "fifty-two billion, five hundred fifty-one million, two hundred fifteen thousand, five hundred twenty-five".

Divisors: 1 5 25 83 223 337 415 1115 1685 2075 5575 8425 18509 27971 75151 92545 113569 139855 375755 462725 567845 699275 1878775 2839225 6237533 9426227 25325887 31187665 47131135 126629435 155938325 235655675 633147175 2102048621 10510243105 52551215525