57465990 has 32 divisors (see below), whose sum is σ = 153243360. Its totient is φ = 15324192.

The previous prime is 57465923. The next prime is 57465997. The reversal of 57465990 is 9956475.

It is a happy number.

57465990 is a `hidden beast` number, since 57 + 4 + 6 + 599 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57465997) 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, 106149 + ... + 106688.

It is an arithmetic number, because the mean of its divisors is an integer number (4788855).

Almost surely, 2^57465990 is an apocalyptic number.

57465990 is an abundant number, since it is smaller than the sum of its proper divisors (95777370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57465990 is a wasteful number, since it uses less digits than its factorization.

57465990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212853 (or 212847 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 57465990 is about 7580.6325593581. The cubic root of 57465990 is about 385.8960184180.

It can be divided in two parts, 574 and 65990, that added together give a square (66564 = 258²).

The spelling of 57465990 in words is "fifty-seven million, four hundred sixty-five thousand, nine hundred ninety".