65713557 has 48 divisors (see below), whose sum is σ = 111004992. Its totient is φ = 34272000.

The previous prime is 65713519. The next prime is 65713561. The reversal of 65713557 is 75531756.

It is a happy number.

It is not a de Polignac number, because 65713557 - 2¹⁴ = 65697173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65713577) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 261682 + ... + 261932.

It is an arithmetic number, because the mean of its divisors is an integer number (2312604).

Almost surely, 2^65713557 is an apocalyptic number.

It is an amenable number.

65713557 is a deficient number, since it is larger than the sum of its proper divisors (45291435).

65713557 is a wasteful number, since it uses less digits than its factorization.

65713557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 411 counting only the distinct ones).

The product of its digits is 110250, while the sum is 39.

The square root of 65713557 is about 8106.3898869966. The cubic root of 65713557 is about 403.5385153845.

The spelling of 65713557 in words is "sixty-five million, seven hundred thirteen thousand, five hundred fifty-seven".