15265256655 has 64 divisors (see below), whose sum is σ = 26980563456. Its totient is φ = 7308480000.

The previous prime is 15265256627. The next prime is 15265256681. The reversal of 15265256655 is 55665256251.

It is not a de Polignac number, because 15265256655 - 2⁹ = 15265256143 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7681572 + ... + 7683558.

It is an arithmetic number, because the mean of its divisors is an integer number (421571304).

Almost surely, 2^15265256655 is an apocalyptic number.

15265256655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15265256655 is a deficient number, since it is larger than the sum of its proper divisors (11715306801).

15265256655 is a wasteful number, since it uses less digits than its factorization.

15265256655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568.

The product of its digits is 2700000, while the sum is 48.

The spelling of 15265256655 in words is "fifteen billion, two hundred sixty-five million, two hundred fifty-six thousand, six hundred fifty-five".