57791663 has 12 divisors (see below), whose sum is σ = 61037928. Its totient is φ = 54708720.

The previous prime is 57791659. The next prime is 57791681. The reversal of 57791663 is 36619775.

It is not a de Polignac number, because 57791663 - 2² = 57791659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57791633) 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, 56093 + ... + 57113.

It is an arithmetic number, because the mean of its divisors is an integer number (5086494).

Almost surely, 2^57791663 is an apocalyptic number.

57791663 is a deficient number, since it is larger than the sum of its proper divisors (3246265).

57791663 is a wasteful number, since it uses less digits than its factorization.

57791663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1151 counting only the distinct ones).

The product of its digits is 238140, while the sum is 44.

The square root of 57791663 is about 7602.0828067050. The cubic root of 57791663 is about 386.6236328280.

The spelling of 57791663 in words is "fifty-seven million, seven hundred ninety-one thousand, six hundred sixty-three".