648585425 has 24 divisors (see below), whose sum is σ = 854409600. Its totient is φ = 487010880.

The previous prime is 648585409. The next prime is 648585449. The reversal of 648585425 is 524585846.

It is not a de Polignac number, because 648585425 - 2⁴ = 648585409 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 648585425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45512 + ... + 58038.

It is an arithmetic number, because the mean of its divisors is an integer number (35600400).

Almost surely, 2^648585425 is an apocalyptic number.

It is an amenable number.

648585425 is a deficient number, since it is larger than the sum of its proper divisors (205824175).

648585425 is a wasteful number, since it uses less digits than its factorization.

648585425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12665 (or 12660 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 47.

The square root of 648585425 is about 25467.3403597627. The cubic root of 648585425 is about 865.6102591033.

The spelling of 648585425 in words is "six hundred forty-eight million, five hundred eighty-five thousand, four hundred twenty-five".