2513212155 has 24 divisors (see below), whose sum is σ = 4360630560. Its totient is φ = 1339027200.

The previous prime is 2513212111. The next prime is 2513212159. The reversal of 2513212155 is 5512123152.

It is not a de Polignac number, because 2513212155 - 2⁷ = 2513212027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2513212159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17730 + ... + 73080.

It is an arithmetic number, because the mean of its divisors is an integer number (181692940).

Almost surely, 2^2513212155 is an apocalyptic number.

2513212155 is a deficient number, since it is larger than the sum of its proper divisors (1847418405).

2513212155 is a wasteful number, since it uses less digits than its factorization.

2513212155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56371 (or 56368 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 2513212155 is about 50131.9474487078. The cubic root of 2513212155 is about 1359.5954958697.

The spelling of 2513212155 in words is "two billion, five hundred thirteen million, two hundred twelve thousand, one hundred fifty-five".