15915055 has 16 divisors (see below), whose sum is σ = 21278880. Its totient is φ = 11346048.

The previous prime is 15915049. The next prime is 15915079. The reversal of 15915055 is 55051951.

It is a cyclic number.

It is not a de Polignac number, because 15915055 - 2³ = 15915047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337 + ... + 6106.

It is an arithmetic number, because the mean of its divisors is an integer number (1329930).

Almost surely, 2^15915055 is an apocalyptic number.

15915055 is a deficient number, since it is larger than the sum of its proper divisors (5363825).

15915055 is a wasteful number, since it uses less digits than its factorization.

15915055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490.

The product of its (nonzero) digits is 5625, while the sum is 31.

The square root of 15915055 is about 3989.3677443926. The cubic root of 15915055 is about 251.5374851739.

The spelling of 15915055 in words is "fifteen million, nine hundred fifteen thousand, fifty-five".