15001611055 has 4 divisors (see below), whose sum is σ = 18001933272. Its totient is φ = 12001288840.

The previous prime is 15001611043. The next prime is 15001611067. The reversal of 15001611055 is 55011610051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55011610051 = 739 ⋅74440609.

It is an interprime number because it is at equal distance from previous prime (15001611043) and next prime (15001611067).

It is not a de Polignac number, because 15001611055 - 2⁷ = 15001610927 is a prime.

It is a Duffinian number.

It is a congruent 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, 1500161101 + ... + 1500161110.

It is an arithmetic number, because the mean of its divisors is an integer number (4500483318).

Almost surely, 2^15001611055 is an apocalyptic number.

15001611055 is a deficient number, since it is larger than the sum of its proper divisors (3000322217).

15001611055 is an equidigital number, since it uses as much as digits as its factorization.

15001611055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000322216.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 15001611055 in words is "fifteen billion, one million, six hundred eleven thousand, fifty-five".