57229881 has 8 divisors (see below), whose sum is σ = 80322720. Its totient is φ = 36145152.

The previous prime is 57229849. The next prime is 57229889. The reversal of 57229881 is 18892275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57229881 - 2⁵ = 57229849 is a prime.

It is a super-2 number, since 2×57229881² = 6550518558548322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57229889) 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, 501960 + ... + 502073.

It is an arithmetic number, because the mean of its divisors is an integer number (10040340).

Almost surely, 2^57229881 is an apocalyptic number.

It is an amenable number.

57229881 is a deficient number, since it is larger than the sum of its proper divisors (23092839).

57229881 is a wasteful number, since it uses less digits than its factorization.

57229881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004055.

The product of its digits is 80640, while the sum is 42.

The square root of 57229881 is about 7565.0433574435. The cubic root of 57229881 is about 385.3667860038.

The spelling of 57229881 in words is "fifty-seven million, two hundred twenty-nine thousand, eight hundred eighty-one".