65297090625 has 48 divisors (see below), whose sum is σ = 117192624192. Its totient is φ = 32146200000.

The previous prime is 65297090611. The next prime is 65297090659. The reversal of 65297090625 is 52609079256.

It is not a de Polignac number, because 65297090625 - 2⁴ = 65297090609 is a prime.

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, 146011 + ... + 389760.

It is an arithmetic number, because the mean of its divisors is an integer number (2441513004).

Almost surely, 2^65297090625 is an apocalyptic number.

65297090625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65297090625 is a deficient number, since it is larger than the sum of its proper divisors (51895533567).

65297090625 is an equidigital number, since it uses as much as digits as its factorization.

65297090625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535812 (or 535792 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 51.

The spelling of 65297090625 in words is "sixty-five billion, two hundred ninety-seven million, ninety thousand, six hundred twenty-five".