15885961025 has 12 divisors (see below), whose sum is σ = 21489373104. Its totient is φ = 11553426000.

The previous prime is 15885960991. The next prime is 15885961027. The reversal of 15885961025 is 52016958851.

It is a happy number.

It is not a de Polignac number, because 15885961025 - 2¹⁰ = 15885960001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15885961027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28883291 + ... + 28883840.

It is an arithmetic number, because the mean of its divisors is an integer number (1790781092).

Almost surely, 2^15885961025 is an apocalyptic number.

It is an amenable number.

15885961025 is a deficient number, since it is larger than the sum of its proper divisors (5603412079).

15885961025 is a wasteful number, since it uses less digits than its factorization.

15885961025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57767152 (or 57767147 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 50.

The spelling of 15885961025 in words is "fifteen billion, eight hundred eighty-five million, nine hundred sixty-one thousand, twenty-five".