115288551 has 24 divisors (see below), whose sum is σ = 190736000. Its totient is φ = 65734416.

The previous prime is 115288531. The next prime is 115288573. The reversal of 115288551 is 155882511.

115288551 is a `hidden beast` number, since 1 + 1 + 528 + 85 + 51 = 666.

It is not a de Polignac number, because 115288551 - 2⁵ = 115288519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115288531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31200 + ... + 34698.

Almost surely, 2^115288551 is an apocalyptic number.

115288551 is a deficient number, since it is larger than the sum of its proper divisors (75447449).

115288551 is a wasteful number, since it uses less digits than its factorization.

115288551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035 (or 4032 counting only the distinct ones).

The product of its digits is 16000, while the sum is 36.

The square root of 115288551 is about 10737.2506257421. The cubic root of 115288551 is about 486.7008001851.

The spelling of 115288551 in words is "one hundred fifteen million, two hundred eighty-eight thousand, five hundred fifty-one".