57506887 has 8 divisors (see below), whose sum is σ = 59910480. Its totient is φ = 55151040.

The previous prime is 57506881. The next prime is 57506899. The reversal of 57506887 is 78860575.

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 57506887 - 2⁷ = 57506759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57506881) 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, 9468 + ... + 14305.

It is an arithmetic number, because the mean of its divisors is an integer number (7488810).

Almost surely, 2^57506887 is an apocalyptic number.

57506887 is a deficient number, since it is larger than the sum of its proper divisors (2403593).

57506887 is a wasteful number, since it uses less digits than its factorization.

57506887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23873.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 57506887 is about 7583.3295457866. The cubic root of 57506887 is about 385.9875406504.

It can be divided in two parts, 57 and 506887, that added together give a square (506944 = 712²).

The spelling of 57506887 in words is "fifty-seven million, five hundred six thousand, eight hundred eighty-seven".