2505140155 has 16 divisors (see below), whose sum is σ = 3439074240. Its totient is φ = 1716083712.

The previous prime is 2505140153. The next prime is 2505140159. The reversal of 2505140155 is 5510415052.

It is not a de Polignac number, because 2505140155 - 2¹ = 2505140153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2505140153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154 + ... + 70783.

It is an arithmetic number, because the mean of its divisors is an integer number (214942140).

Almost surely, 2^2505140155 is an apocalyptic number.

2505140155 is a deficient number, since it is larger than the sum of its proper divisors (933934085).

2505140155 is a wasteful number, since it uses less digits than its factorization.

2505140155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71958.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 2505140155 is about 50051.3751559335. The cubic root of 2505140155 is about 1358.1383400155.

The spelling of 2505140155 in words is "two billion, five hundred five million, one hundred forty thousand, one hundred fifty-five".