65257492 has 36 divisors (see below), whose sum is σ = 124451964. Its totient is φ = 29836800.

The previous prime is 65257487. The next prime is 65257541. The reversal of 65257492 is 29475256.

It can be written as a sum of positive squares in 6 ways, for example, as 33942276 + 31315216 = 5826^2 + 5596^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92742 + ... + 93442.

It is an arithmetic number, because the mean of its divisors is an integer number (3456999).

Almost surely, 2^65257492 is an apocalyptic number.

It is an amenable number.

65257492 is a deficient number, since it is larger than the sum of its proper divisors (59194472).

65257492 is a wasteful number, since it uses less digits than its factorization.

65257492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 757 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 65257492 is about 8078.2109405487. The cubic root of 65257492 is about 402.6028018215.

The spelling of 65257492 in words is "sixty-five million, two hundred fifty-seven thousand, four hundred ninety-two".