57287004 has 24 divisors (see below), whose sum is σ = 136931088. Its totient is φ = 18629760.

The previous prime is 57287003. The next prime is 57287017. The reversal of 57287004 is 40078275.

It is a super-3 number, since 3×57287004³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57287003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57727 + ... + 58710.

It is an arithmetic number, because the mean of its divisors is an integer number (5705462).

Almost surely, 2^57287004 is an apocalyptic number.

It is an amenable number.

57287004 is an abundant number, since it is smaller than the sum of its proper divisors (79644084).

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

57287004 is a wasteful number, since it uses less digits than its factorization.

57287004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116485 (or 116483 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 57287004 is about 7568.8178733538. The cubic root of 57287004 is about 385.4949590638.

The spelling of 57287004 in words is "fifty-seven million, two hundred eighty-seven thousand, four".