15552145525 has 72 divisors (see below), whose sum is σ = 23968718880. Its totient is φ = 9951258240.

The previous prime is 15552145519. The next prime is 15552145559. The reversal of 15552145525 is 52554125551.

It is a happy number.

It is not a de Polignac number, because 15552145525 - 2³ = 15552145517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1554439 + ... + 1564411.

Almost surely, 2^15552145525 is an apocalyptic number.

It is an amenable number.

15552145525 is a deficient number, since it is larger than the sum of its proper divisors (8416573355).

15552145525 is a wasteful number, since it uses less digits than its factorization.

15552145525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10083 (or 10071 counting only the distinct ones).

The product of its digits is 250000, while the sum is 40.

The spelling of 15552145525 in words is "fifteen billion, five hundred fifty-two million, one hundred forty-five thousand, five hundred twenty-five".