57881630 has 16 divisors (see below), whose sum is σ = 104363424. Its totient is φ = 23113440.

The previous prime is 57881623. The next prime is 57881633. The reversal of 57881630 is 3618875.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57881633) 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, 1724 + ... + 10896.

It is an arithmetic number, because the mean of its divisors is an integer number (6522714).

Almost surely, 2^57881630 is an apocalyptic number.

57881630 is a deficient number, since it is larger than the sum of its proper divisors (46481794).

57881630 is a wasteful number, since it uses less digits than its factorization.

57881630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9811.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 57881630 is about 7607.9977655097. The cubic root of 57881630 is about 386.8241538751.

The spelling of 57881630 in words is "fifty-seven million, eight hundred eighty-one thousand, six hundred thirty".