656504425 has 6 divisors (see below), whose sum is σ = 814065518. Its totient is φ = 525203520.

The previous prime is 656504417. The next prime is 656504437. The reversal of 656504425 is 524405656.

656504425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 95004009 + 561500416 = 9747^2 + 23696^2 .

It is not a de Polignac number, because 656504425 - 2³ = 656504417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13130064 + ... + 13130113.

Almost surely, 2^656504425 is an apocalyptic number.

It is an amenable number.

656504425 is a deficient number, since it is larger than the sum of its proper divisors (157561093).

656504425 is a wasteful number, since it uses less digits than its factorization.

656504425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26260187 (or 26260182 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 656504425 is about 25622.3423012027. The cubic root of 656504425 is about 869.1189499597.

The spelling of 656504425 in words is "six hundred fifty-six million, five hundred four thousand, four hundred twenty-five".