15245975855 has 32 divisors (see below), whose sum is σ = 20400629760. Its totient is φ = 10842693120.

The previous prime is 15245975827. The next prime is 15245975867. The reversal of 15245975855 is 55857954251.

It is not a de Polignac number, because 15245975855 - 2¹⁰ = 15245974831 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 15245975855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4591886 + ... + 4595204.

It is an arithmetic number, because the mean of its divisors is an integer number (637519680).

Almost surely, 2^15245975855 is an apocalyptic number.

15245975855 is a deficient number, since it is larger than the sum of its proper divisors (5154653905).

15245975855 is a wasteful number, since it uses less digits than its factorization.

15245975855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159.

The product of its digits is 12600000, while the sum is 56.

The spelling of 15245975855 in words is "fifteen billion, two hundred forty-five million, nine hundred seventy-five thousand, eight hundred fifty-five".