55224720015 has 16 divisors (see below), whose sum is σ = 88391142528. Its totient is φ = 29442653856.

The previous prime is 55224720007. The next prime is 55224720049. The reversal of 55224720015 is 51002742255.

55224720015 is digitally balanced in base 11, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55224720015 - 2³ = 55224720007 is a prime.

55224720015 is strictly pandigital in base 11.

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, 614689 + ... + 698778.

It is an arithmetic number, because the mean of its divisors is an integer number (5524446408).

Almost surely, 2^55224720015 is an apocalyptic number.

55224720015 is a deficient number, since it is larger than the sum of its proper divisors (33166422513).

55224720015 is a wasteful number, since it uses less digits than its factorization.

55224720015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316278.

The product of its (nonzero) digits is 28000, while the sum is 33.

The spelling of 55224720015 in words is "fifty-five billion, two hundred twenty-four million, seven hundred twenty thousand, fifteen".