57664356 has 24 divisors (see below), whose sum is σ = 135149280. Its totient is φ = 19135872.

The previous prime is 57664351. The next prime is 57664361. The reversal of 57664356 is 65346675.

It is an interprime number because it is at equal distance from previous prime (57664351) and next prime (57664361).

It is not an unprimeable number, because it can be changed into a prime (57664351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7861 + ... + 13308.

It is an arithmetic number, because the mean of its divisors is an integer number (5631220).

Almost surely, 2^57664356 is an apocalyptic number.

It is an amenable number.

57664356 is an abundant number, since it is smaller than the sum of its proper divisors (77484924).

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

57664356 is a wasteful number, since it uses less digits than its factorization.

57664356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403 (or 21401 counting only the distinct ones).

The product of its digits is 453600, while the sum is 42.

The square root of 57664356 is about 7593.7050245582. The cubic root of 57664356 is about 386.3395314075.

The spelling of 57664356 in words is "fifty-seven million, six hundred sixty-four thousand, three hundred fifty-six".