57648222 has 12 divisors (see below), whose sum is σ = 124904520. Its totient is φ = 19216068.

The previous prime is 57648211. The next prime is 57648229. The reversal of 57648222 is 22284675.

57648222 is a `hidden beast` number, since 5 + 7 + 648 + 2 + 2 + 2 = 666.

It is a super-2 number, since 2×57648222² = 6646634999522568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57648229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1601322 + ... + 1601357.

It is an arithmetic number, because the mean of its divisors is an integer number (10408710).

Almost surely, 2^57648222 is an apocalyptic number.

57648222 is an abundant number, since it is smaller than the sum of its proper divisors (67256298).

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

57648222 is a wasteful number, since it uses less digits than its factorization.

57648222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202687 (or 3202684 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 57648222 is about 7592.6426229607. The cubic root of 57648222 is about 386.3034965335.

The spelling of 57648222 in words is "fifty-seven million, six hundred forty-eight thousand, two hundred twenty-two".