57225466872 has 128 divisors (see below), whose sum is σ = 181802649600. Its totient is φ = 16338029184.

The previous prime is 57225466867. The next prime is 57225466889. The reversal of 57225466872 is 27866452275.

57225466872 is a `hidden beast` number, since 5 + 7 + 22 + 546 + 6 + 8 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2138278 + ... + 2164874.

It is an arithmetic number, because the mean of its divisors is an integer number (1420333200).

Almost surely, 2^57225466872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57225466872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90901324800).

57225466872 is an abundant number, since it is smaller than the sum of its proper divisors (124577182728).

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

57225466872 is a wasteful number, since it uses less digits than its factorization.

57225466872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28042 (or 28032 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 57225466872 in words is "fifty-seven billion, two hundred twenty-five million, four hundred sixty-six thousand, eight hundred seventy-two".