57090522 has 32 divisors (see below), whose sum is σ = 121321152. Its totient is φ = 17848064.

The previous prime is 57090521. The next prime is 57090557. The reversal of 57090522 is 22509075.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 57090522.

It is not an unprimeable number, because it can be changed into a prime (57090521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34588 + ... + 36200.

It is an arithmetic number, because the mean of its divisors is an integer number (3791286).

Almost surely, 2^57090522 is an apocalyptic number.

57090522 is an abundant number, since it is smaller than the sum of its proper divisors (64230630).

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

57090522 is a wasteful number, since it uses less digits than its factorization.

57090522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 57090522 is about 7555.8270229009. The cubic root of 57090522 is about 385.0537328726.

Adding to 57090522 its reverse (22509075), we get a palindrome (79599597).

The spelling of 57090522 in words is "fifty-seven million, ninety thousand, five hundred twenty-two".