57887220 has 24 divisors (see below), whose sum is σ = 162084384. Its totient is φ = 15436576.

The previous prime is 57887213. The next prime is 57887233. The reversal of 57887220 is 2278875.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482334 + ... + 482453.

It is an arithmetic number, because the mean of its divisors is an integer number (6753516).

Almost surely, 2^57887220 is an apocalyptic number.

It is an amenable number.

57887220 is an abundant number, since it is smaller than the sum of its proper divisors (104197164).

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

57887220 is a wasteful number, since it uses less digits than its factorization.

57887220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964799 (or 964797 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 57887220 is about 7608.3651331939. The cubic root of 57887220 is about 386.8366061702.

The spelling of 57887220 in words is "fifty-seven million, eight hundred eighty-seven thousand, two hundred twenty".