57657630 has 16 divisors (see below), whose sum is σ = 138378384. Its totient is φ = 15375360.

The previous prime is 57657623. The next prime is 57657631. The reversal of 57657630 is 3675675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57657631) 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, 960931 + ... + 960990.

It is an arithmetic number, because the mean of its divisors is an integer number (8648649).

Almost surely, 2^57657630 is an apocalyptic number.

57657630 is an abundant number, since it is smaller than the sum of its proper divisors (80720754).

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

57657630 is a wasteful number, since it uses less digits than its factorization.

57657630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921931.

The product of its (nonzero) digits is 132300, while the sum is 39.

The square root of 57657630 is about 7593.2621448229. The cubic root of 57657630 is about 386.3245098766.

The spelling of 57657630 in words is "fifty-seven million, six hundred fifty-seven thousand, six hundred thirty".