57219522 has 16 divisors (see below), whose sum is σ = 114516480. Its totient is φ = 19060272.

The previous prime is 57219511. The next prime is 57219527. The reversal of 57219522 is 22591275.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57219527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11679 + ... + 15837.

It is an arithmetic number, because the mean of its divisors is an integer number (7157280).

Almost surely, 2^57219522 is an apocalyptic number.

57219522 is an abundant number, since it is smaller than the sum of its proper divisors (57296958).

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

57219522 is a wasteful number, since it uses less digits than its factorization.

57219522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6457.

The product of its digits is 12600, while the sum is 33.

The square root of 57219522 is about 7564.3586641565. The cubic root of 57219522 is about 385.3435332592.

The spelling of 57219522 in words is "fifty-seven million, two hundred nineteen thousand, five hundred twenty-two".