7256625660 has 72 divisors (see below), whose sum is σ = 22170198960. Its totient is φ = 1921171968.

The previous prime is 7256625647. The next prime is 7256625667. The reversal of 7256625660 is 665266527.

7256625660 is a `hidden beast` number, since 7 + 2 + 566 + 25 + 6 + 60 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7256625667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119997 + ... + 170036.

It is an arithmetic number, because the mean of its divisors is an integer number (307919430).

Almost surely, 2^7256625660 is an apocalyptic number.

It is an amenable number.

7256625660 is an abundant number, since it is smaller than the sum of its proper divisors (14913573300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7256625660 is a wasteful number, since it uses less digits than its factorization.

7256625660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290187 (or 290182 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 7256625660 is about 85185.8301597161. The cubic root of 7256625660 is about 1936.0277295934.

The spelling of 7256625660 in words is "seven billion, two hundred fifty-six million, six hundred twenty-five thousand, six hundred sixty".