15550808325 has 48 divisors (see below), whose sum is σ = 28039038720. Its totient is φ = 7558836480.

The previous prime is 15550808297. The next prime is 15550808347. The reversal of 15550808325 is 52380805551.

It is not a de Polignac number, because 15550808325 - 2¹⁰ = 15550807301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23922 + ... + 177971.

It is an arithmetic number, because the mean of its divisors is an integer number (584146640).

Almost surely, 2^15550808325 is an apocalyptic number.

15550808325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15550808325 is a deficient number, since it is larger than the sum of its proper divisors (12488230395).

15550808325 is a wasteful number, since it uses less digits than its factorization.

15550808325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201998 (or 201993 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 42.

The spelling of 15550808325 in words is "fifteen billion, five hundred fifty million, eight hundred eight thousand, three hundred twenty-five".