55260015 has 32 divisors (see below), whose sum is σ = 91293696. Its totient is φ = 28527360.

The previous prime is 55259977. The next prime is 55260017. The reversal of 55260015 is 51006255.

It is not a de Polignac number, because 55260015 - 2⁶ = 55259951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55260017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72235 + ... + 72995.

It is an arithmetic number, because the mean of its divisors is an integer number (2852928).

Almost surely, 2^55260015 is an apocalyptic number.

55260015 is a deficient number, since it is larger than the sum of its proper divisors (36033681).

55260015 is a wasteful number, since it uses less digits than its factorization.

55260015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55260015 is about 7433.7080249361. The cubic root of 55260015 is about 380.8935918494.

The spelling of 55260015 in words is "fifty-five million, two hundred sixty thousand, fifteen".