55171500015 has 8 divisors (see below), whose sum is σ = 88274400048. Its totient is φ = 29424800000.

The previous prime is 55171499939. The next prime is 55171500037. The reversal of 55171500015 is 51000517155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55171500015 - 2¹¹ = 55171497967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1839049986 + ... + 1839050015.

It is an arithmetic number, because the mean of its divisors is an integer number (11034300006).

Almost surely, 2^55171500015 is an apocalyptic number.

55171500015 is a deficient number, since it is larger than the sum of its proper divisors (33102900033).

55171500015 is a wasteful number, since it uses less digits than its factorization.

55171500015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678100009.

The product of its (nonzero) digits is 4375, while the sum is 30.

The spelling of 55171500015 in words is "fifty-five billion, one hundred seventy-one million, five hundred thousand, fifteen".