15622663025 has 12 divisors (see below), whose sum is σ = 19661240112. Its totient is φ = 12311589840.

The previous prime is 15622662989. The next prime is 15622663057. The reversal of 15622663025 is 52036622651.

It is not a de Polignac number, because 15622663025 - 2¹⁰ = 15622662001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15622663025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4661807 + ... + 4665156.

It is an arithmetic number, because the mean of its divisors is an integer number (1638436676).

Almost surely, 2^15622663025 is an apocalyptic number.

It is an amenable number.

15622663025 is a deficient number, since it is larger than the sum of its proper divisors (4038577087).

15622663025 is an equidigital number, since it uses as much as digits as its factorization.

15622663025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9327040 (or 9327035 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 15622663025 in words is "fifteen billion, six hundred twenty-two million, six hundred sixty-three thousand, twenty-five".