11501322625 has 16 divisors (see below), whose sum is σ = 15457779792. Its totient is φ = 8493283200.

The previous prime is 11501322619. The next prime is 11501322641. The reversal of 11501322625 is 52622310511.

It can be written as a sum of positive squares in 8 ways, for example, as 6082596081 + 5418726544 = 77991^2 + 73612^2 .

It is not a de Polignac number, because 11501322625 - 2⁵ = 11501322593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11501322593 and 11501322602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3537244 + ... + 3540493.

It is an arithmetic number, because the mean of its divisors is an integer number (966111237).

Almost surely, 2^11501322625 is an apocalyptic number.

It is an amenable number.

11501322625 is a deficient number, since it is larger than the sum of its proper divisors (3956457167).

11501322625 is an equidigital number, since it uses as much as digits as its factorization.

11501322625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7077765 (or 7077755 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 11501322625 in words is "eleven billion, five hundred one million, three hundred twenty-two thousand, six hundred twenty-five".