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52666625 = 531138303
BaseRepresentation
bin1100100011101…
…0000100000001
310200002202000202
43020322010001
5101440313000
65120454545
71206442004
oct310720401
9120082022
1052666625
1127802240
121577a455
13abb00ab
146dcd53b
154954dd5
hex323a101

52666625 has 16 divisors (see below), whose sum is σ = 71705088. Its totient is φ = 38302000.

The previous prime is 52666609. The next prime is 52666631.

52666625 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 52666625 - 24 = 52666609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17777 + ... + 20526.

It is an arithmetic number, because the mean of its divisors is an integer number (4481568).

Almost surely, 252666625 is an apocalyptic number.

52666625 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52666625 is a deficient number, since it is larger than the sum of its proper divisors (19038463).

52666625 is a wasteful number, since it uses less digits than its factorization.

52666625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38329 (or 38319 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 52666625 is about 7257.1774816384. The cubic root of 52666625 is about 374.8393385850.

The spelling of 52666625 in words is "fifty-two million, six hundred sixty-six thousand, six hundred twenty-five".

Divisors: 1 5 11 25 55 125 275 1375 38303 191515 421333 957575 2106665 4787875 10533325 52666625