57039465 has 16 divisors (see below), whose sum is σ = 104300928. Its totient is φ = 26075136.

The previous prime is 57039461. The next prime is 57039467. The reversal of 57039465 is 56493075.

It is not a de Polignac number, because 57039465 - 2² = 57039461 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57039461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271512 + ... + 271721.

It is an arithmetic number, because the mean of its divisors is an integer number (6518808).

Almost surely, 2^57039465 is an apocalyptic number.

It is an amenable number.

57039465 is a deficient number, since it is larger than the sum of its proper divisors (47261463).

57039465 is a wasteful number, since it uses less digits than its factorization.

57039465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543248.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 57039465 is about 7552.4476165016. The cubic root of 57039465 is about 384.9389119920.

The spelling of 57039465 in words is "fifty-seven million, thirty-nine thousand, four hundred sixty-five".