7561636625 has 32 divisors (see below), whose sum is σ = 9951102720. Its totient is φ = 5720832000.

The previous prime is 7561636603. The next prime is 7561636631. The reversal of 7561636625 is 5266361657.

It is not a de Polignac number, because 7561636625 - 2¹⁶ = 7561571089 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7561636625.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1519892 + ... + 1524858.

It is an arithmetic number, because the mean of its divisors is an integer number (310971960).

Almost surely, 2^7561636625 is an apocalyptic number.

It is an amenable number.

7561636625 is a deficient number, since it is larger than the sum of its proper divisors (2389466095).

7561636625 is a wasteful number, since it uses less digits than its factorization.

7561636625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5642 (or 5632 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 47.

The square root of 7561636625 is about 86957.6714557146. The cubic root of 7561636625 is about 1962.7814031139.

The spelling of 7561636625 in words is "seven billion, five hundred sixty-one million, six hundred thirty-six thousand, six hundred twenty-five".