57222832 has 30 divisors (see below), whose sum is σ = 117023388. Its totient is φ = 27102816.

The previous prime is 57222791. The next prime is 57222859. The reversal of 57222832 is 23822275.

It is a junction number, because it is equal to n+sod(n) for n = 57222794 and 57222803.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 823 + ... + 10729.

Almost surely, 2^57222832 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 57222832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58511694).

57222832 is an abundant number, since it is smaller than the sum of its proper divisors (59800556).

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

57222832 is a wasteful number, since it uses less digits than its factorization.

57222832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9953 (or 9928 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 57222832 is about 7564.5774501951. The cubic root of 57222832 is about 385.3509634884.

The spelling of 57222832 in words is "fifty-seven million, two hundred twenty-two thousand, eight hundred thirty-two".