57522222 has 12 divisors (see below), whose sum is σ = 124631520. Its totient is φ = 19174068.

The previous prime is 57522217. The next prime is 57522233. The reversal of 57522222 is 22222575.

It is a congruent number.

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, 1597822 + ... + 1597857.

It is an arithmetic number, because the mean of its divisors is an integer number (10385960).

Almost surely, 2^57522222 is an apocalyptic number.

57522222 is an abundant number, since it is smaller than the sum of its proper divisors (67109298).

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

57522222 is a wasteful number, since it uses less digits than its factorization.

57522222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195687 (or 3195684 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 57522222 is about 7584.3405777958. The cubic root of 57522222 is about 386.0218472247.

Adding to 57522222 its reverse (22222575), we get a palindrome (79744797).

The spelling of 57522222 in words is "fifty-seven million, five hundred twenty-two thousand, two hundred twenty-two".