57716505 has 48 divisors (see below), whose sum is σ = 124735104. Its totient is φ = 23984640.

The previous prime is 57716459. The next prime is 57716521. The reversal of 57716505 is 50561775.

It is not a de Polignac number, because 57716505 - 2⁶ = 57716441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57716505.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4864 + ... + 11793.

It is an arithmetic number, because the mean of its divisors is an integer number (2598648).

Almost surely, 2^57716505 is an apocalyptic number.

57716505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57716505 is an abundant number, since it is smaller than the sum of its proper divisors (67018599).

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

57716505 is a wasteful number, since it uses less digits than its factorization.

57716505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16686 (or 16683 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 57716505 is about 7597.1379479380. The cubic root of 57716505 is about 386.4559589043.

The spelling of 57716505 in words is "fifty-seven million, seven hundred sixteen thousand, five hundred five".