2515402155 has 64 divisors (see below), whose sum is σ = 4762828800. Its totient is φ = 1109324160.

The previous prime is 2515402151. The next prime is 2515402163. The reversal of 2515402155 is 5512045152.

It is not a de Polignac number, because 2515402155 - 2² = 2515402151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2515402151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1232626 + ... + 1234664.

It is an arithmetic number, because the mean of its divisors is an integer number (74419200).

Almost surely, 2^2515402155 is an apocalyptic number.

2515402155 is a deficient number, since it is larger than the sum of its proper divisors (2247426645).

2515402155 is a wasteful number, since it uses less digits than its factorization.

2515402155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 2515402155 is about 50153.7850515791. The cubic root of 2515402155 is about 1359.9902960308.

The spelling of 2515402155 in words is "two billion, five hundred fifteen million, four hundred two thousand, one hundred fifty-five".