57222504 has 32 divisors (see below), whose sum is σ = 158952000. Its totient is φ = 19074096.

The previous prime is 57222491. The next prime is 57222523. The reversal of 57222504 is 40522275.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132244 + ... + 132675.

It is an arithmetic number, because the mean of its divisors is an integer number (4967250).

Almost surely, 2^57222504 is an apocalyptic number.

57222504 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

57222504 is an abundant number, since it is smaller than the sum of its proper divisors (101729496).

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

57222504 is a wasteful number, since it uses less digits than its factorization.

57222504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264934 (or 264924 counting only the distinct ones).

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

The square root of 57222504 is about 7564.5557701692. Note that the first 3 decimals coincide. The cubic root of 57222504 is about 385.3502272126.

Adding to 57222504 its reverse (40522275), we get a palindrome (97744779).

The spelling of 57222504 in words is "fifty-seven million, two hundred twenty-two thousand, five hundred four".