2506322155 has 24 divisors (see below), whose sum is σ = 3199775040. Its totient is φ = 1884241920.

The previous prime is 2506322149. The next prime is 2506322191. The reversal of 2506322155 is 5512236052.

It is a happy number.

It is not a de Polignac number, because 2506322155 - 2²⁹ = 1969451243 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1778091 + ... + 1779499.

It is an arithmetic number, because the mean of its divisors is an integer number (133323960).

Almost surely, 2^2506322155 is an apocalyptic number.

2506322155 is a deficient number, since it is larger than the sum of its proper divisors (693452885).

2506322155 is a wasteful number, since it uses less digits than its factorization.

2506322155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679 (or 2662 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 2506322155 is about 50063.1816308153. The cubic root of 2506322155 is about 1358.3519098500.

The spelling of 2506322155 in words is "two billion, five hundred six million, three hundred twenty-two thousand, one hundred fifty-five".