15525260155 has 4 divisors (see below), whose sum is σ = 18630312192. Its totient is φ = 12420208120.

The previous prime is 15525260137. The next prime is 15525260189. The reversal of 15525260155 is 55106252551.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15525260155 - 2⁷ = 15525260027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552526011 + ... + 1552526020.

It is an arithmetic number, because the mean of its divisors is an integer number (4657578048).

Almost surely, 2^15525260155 is an apocalyptic number.

15525260155 is a deficient number, since it is larger than the sum of its proper divisors (3105052037).

15525260155 is an equidigital number, since it uses as much as digits as its factorization.

15525260155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105052036.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 15525260155 in words is "fifteen billion, five hundred twenty-five million, two hundred sixty thousand, one hundred fifty-five".