57797509 has 24 divisors (see below), whose sum is σ = 73921248. Its totient is φ = 44684640.

The previous prime is 57797503. The next prime is 57797527. The reversal of 57797509 is 90579775.

It is not a de Polignac number, because 57797509 - 2⁵ = 57797477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57797503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84282 + ... + 84964.

It is an arithmetic number, because the mean of its divisors is an integer number (3080052).

Almost surely, 2^57797509 is an apocalyptic number.

It is an amenable number.

57797509 is a deficient number, since it is larger than the sum of its proper divisors (16123739).

57797509 is a wasteful number, since it uses less digits than its factorization.

57797509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 694575, while the sum is 49.

The square root of 57797509 is about 7602.4672968715. The cubic root of 57797509 is about 386.6366688810.

The spelling of 57797509 in words is "fifty-seven million, seven hundred ninety-seven thousand, five hundred nine".