2155872235 has 8 divisors (see below), whose sum is σ = 2822232816. Its totient is φ = 1567907040.

The previous prime is 2155872233. The next prime is 2155872283. The reversal of 2155872235 is 5322785512.

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

It is not a de Polignac number, because 2155872235 - 2¹ = 2155872233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155872233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19598784 + ... + 19598893.

It is an arithmetic number, because the mean of its divisors is an integer number (352779102).

Almost surely, 2^2155872235 is an apocalyptic number.

2155872235 is a deficient number, since it is larger than the sum of its proper divisors (666360581).

2155872235 is a wasteful number, since it uses less digits than its factorization.

2155872235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39197693.

The product of its digits is 168000, while the sum is 40.

The square root of 2155872235 is about 46431.3712375588. The cubic root of 2155872235 is about 1291.8368630026.

The spelling of 2155872235 in words is "two billion, one hundred fifty-five million, eight hundred seventy-two thousand, two hundred thirty-five".