57225371520 has 64 divisors (see below), whose sum is σ = 182405877840. Its totient is φ = 15260098560.

The previous prime is 57225371503. The next prime is 57225371543. The reversal of 57225371520 is 2517352275.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×57225371520² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14900521 + ... + 14904360.

Almost surely, 2^57225371520 is an apocalyptic number.

It is an amenable number.

57225371520 is an abundant number, since it is smaller than the sum of its proper divisors (125180506320).

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

57225371520 is a wasteful number, since it uses less digits than its factorization.

57225371520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29804903 (or 29804891 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The spelling of 57225371520 in words is "fifty-seven billion, two hundred twenty-five million, three hundred seventy-one thousand, five hundred twenty".