57207265 has 8 divisors (see below), whose sum is σ = 68694120. Its totient is φ = 45735552.

The previous prime is 57207251. The next prime is 57207289. The reversal of 57207265 is 56270275.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36084049 + 21123216 = 6007^2 + 4596^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57207265 - 2¹⁷ = 57076193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57207265.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7707 + ... + 13183.

It is an arithmetic number, because the mean of its divisors is an integer number (8586765).

Almost surely, 2^57207265 is an apocalyptic number.

It is an amenable number.

57207265 is a deficient number, since it is larger than the sum of its proper divisors (11486855).

57207265 is a wasteful number, since it uses less digits than its factorization.

57207265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 57207265 is about 7563.5484397206. The cubic root of 57207265 is about 385.3160164676.

The spelling of 57207265 in words is "fifty-seven million, two hundred seven thousand, two hundred sixty-five".