7725525656 has 16 divisors (see below), whose sum is σ = 14668720800. Its totient is φ = 3813866784.

The previous prime is 7725525649. The next prime is 7725525659. The reversal of 7725525656 is 6565255277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7725525659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111335 + ... + 6112598.

It is an arithmetic number, because the mean of its divisors is an integer number (916795050).

Almost surely, 2^7725525656 is an apocalyptic number.

It is an amenable number.

7725525656 is a deficient number, since it is larger than the sum of its proper divisors (6943195144).

7725525656 is a wasteful number, since it uses less digits than its factorization.

7725525656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12224018 (or 12224014 counting only the distinct ones).

The product of its digits is 4410000, while the sum is 50.

The square root of 7725525656 is about 87894.9694578706. The cubic root of 7725525656 is about 1976.8604511231.

The spelling of 7725525656 in words is "seven billion, seven hundred twenty-five million, five hundred twenty-five thousand, six hundred fifty-six".