57133506 has 16 divisors (see below), whose sum is σ = 115336224. Its totient is φ = 18866304.

The previous prime is 57133501. The next prime is 57133507. The reversal of 57133506 is 60533175.

It is not an unprimeable number, because it can be changed into a prime (57133501) 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, 43855 + ... + 45138.

It is an arithmetic number, because the mean of its divisors is an integer number (7208514).

Almost surely, 2^57133506 is an apocalyptic number.

57133506 is an abundant number, since it is smaller than the sum of its proper divisors (58202718).

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

57133506 is a wasteful number, since it uses less digits than its factorization.

57133506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89105.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 57133506 is about 7558.6709149162. The cubic root of 57133506 is about 385.1503455091.

The spelling of 57133506 in words is "fifty-seven million, one hundred thirty-three thousand, five hundred six".