2505475251 has 12 divisors (see below), whose sum is σ = 3673035912. Its totient is φ = 1645386336.

The previous prime is 2505475243. The next prime is 2505475253. The reversal of 2505475251 is 1525745052.

It is not a de Polignac number, because 2505475251 - 2³ = 2505475243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2505475253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2076906 + ... + 2078111.

It is an arithmetic number, because the mean of its divisors is an integer number (306086326).

Almost surely, 2^2505475251 is an apocalyptic number.

2505475251 is a deficient number, since it is larger than the sum of its proper divisors (1167560661).

2505475251 is a wasteful number, since it uses less digits than its factorization.

2505475251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155090 (or 4155087 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

The square root of 2505475251 is about 50054.7225644094. The cubic root of 2505475251 is about 1358.1988937047.

The spelling of 2505475251 in words is "two billion, five hundred five million, four hundred seventy-five thousand, two hundred fifty-one".