57779361 has 12 divisors (see below), whose sum is σ = 87851920. Its totient is φ = 36492120.

The previous prime is 57779357. The next prime is 57779377. The reversal of 57779361 is 16397775.

57779361 is a `hidden beast` number, since 577 + 79 + 3 + 6 + 1 = 666.

It is not a de Polignac number, because 57779361 - 2² = 57779357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57779321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168775 + ... + 169116.

Almost surely, 2^57779361 is an apocalyptic number.

It is an amenable number.

57779361 is a deficient number, since it is larger than the sum of its proper divisors (30072559).

57779361 is a wasteful number, since it uses less digits than its factorization.

57779361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337916 (or 337913 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 57779361 is about 7601.2736432785. The cubic root of 57779361 is about 386.5961976052.

The spelling of 57779361 in words is "fifty-seven million, seven hundred seventy-nine thousand, three hundred sixty-one".