5156506555 has 16 divisors (see below), whose sum is σ = 6630742944. Its totient is φ = 3835763200.

The previous prime is 5156506541. The next prime is 5156506571. The reversal of 5156506555 is 5556056515.

5156506555 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-5156506555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358396 + ... + 372505.

It is an arithmetic number, because the mean of its divisors is an integer number (414421434).

Almost surely, 2^5156506555 is an apocalyptic number.

5156506555 is a deficient number, since it is larger than the sum of its proper divisors (1474236389).

5156506555 is a wasteful number, since it uses less digits than its factorization.

5156506555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731006.

The product of its (nonzero) digits is 562500, while the sum is 43.

The square root of 5156506555 is about 71808.8194792255. The cubic root of 5156506555 is about 1727.6344600156.

The spelling of 5156506555 in words is "five billion, one hundred fifty-six million, five hundred six thousand, five hundred fifty-five".