57863220 has 48 divisors (see below), whose sum is σ = 162751680. Its totient is φ = 15360256.

The previous prime is 57863219. The next prime is 57863233. The reversal of 57863220 is 2236875.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11911 + ... + 16049.

It is an arithmetic number, because the mean of its divisors is an integer number (3390660).

Almost surely, 2^57863220 is an apocalyptic number.

It is an amenable number.

57863220 is an abundant number, since it is smaller than the sum of its proper divisors (104888460).

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

57863220 is a wasteful number, since it uses less digits than its factorization.

57863220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384 (or 4382 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 57863220 is about 7606.7877583117. The cubic root of 57863220 is about 386.7831380535.

The spelling of 57863220 in words is "fifty-seven million, eight hundred sixty-three thousand, two hundred twenty".