55173647915 has 8 divisors (see below), whose sum is σ = 66212609760. Its totient is φ = 44136096832.

The previous prime is 55173647899. The next prime is 55173647927. The reversal of 55173647915 is 51974637155.

55173647915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55173647915 - 2⁴ = 55173647899 is a prime.

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, 264650 + ... + 424719.

It is an arithmetic number, because the mean of its divisors is an integer number (8276576220).

Almost surely, 2^55173647915 is an apocalyptic number.

55173647915 is a deficient number, since it is larger than the sum of its proper divisors (11038961845).

55173647915 is a wasteful number, since it uses less digits than its factorization.

55173647915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705381.

The product of its digits is 3969000, while the sum is 53.

The spelling of 55173647915 in words is "fifty-five billion, one hundred seventy-three million, six hundred forty-seven thousand, nine hundred fifteen".