57251721200 has 60 divisors (see below), whose sum is σ = 138764602128. Its totient is φ = 22698009600.

The previous prime is 57251721173. The next prime is 57251721217. The reversal of 57251721200 is 212715275.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588116 + ... + 678515.

Almost surely, 2^57251721200 is an apocalyptic number.

57251721200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57251721200 is an abundant number, since it is smaller than the sum of its proper divisors (81512880928).

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

57251721200 is a wasteful number, since it uses less digits than its factorization.

57251721200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266762 (or 1266751 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The spelling of 57251721200 in words is "fifty-seven billion, two hundred fifty-one million, seven hundred twenty-one thousand, two hundred".