57481222 has 16 divisors (see below), whose sum is σ = 88897680. Its totient is φ = 27862272.

The previous prime is 57481217. The next prime is 57481231. The reversal of 57481222 is 22218475.

It is a happy number.

It is a super-2 number, since 2×57481222² = 6608181765226568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5278 + ... + 11950.

It is an arithmetic number, because the mean of its divisors is an integer number (5556105).

Almost surely, 2^57481222 is an apocalyptic number.

57481222 is a deficient number, since it is larger than the sum of its proper divisors (31416458).

57481222 is a wasteful number, since it uses less digits than its factorization.

57481222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807.

The product of its digits is 8960, while the sum is 31.

The square root of 57481222 is about 7581.6371582924. The cubic root of 57481222 is about 385.9301107504.

Adding to 57481222 its reverse (22218475), we get a palindrome (79699697).

It can be divided in two parts, 574 and 81222, that added together give a square (81796 = 286²).

The spelling of 57481222 in words is "fifty-seven million, four hundred eighty-one thousand, two hundred twenty-two".