2508961725 has 36 divisors (see below), whose sum is σ = 4570020000. Its totient is φ = 1315426080.

The previous prime is 2508961717. The next prime is 2508961751. The reversal of 2508961725 is 5271698052.

2508961725 is a `hidden beast` number, since 2 + 5 + 0 + 8 + 9 + 617 + 25 = 666.

It is not a de Polignac number, because 2508961725 - 2³ = 2508961717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 81225 + ... + 107774.

It is an arithmetic number, because the mean of its divisors is an integer number (126945000).

Almost surely, 2^2508961725 is an apocalyptic number.

2508961725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2508961725 is a deficient number, since it is larger than the sum of its proper divisors (2061058275).

2508961725 is a wasteful number, since it uses less digits than its factorization.

2508961725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189074 (or 189066 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 2508961725 is about 50089.5370811111. The cubic root of 2508961725 is about 1358.8285986354.

The spelling of 2508961725 in words is "two billion, five hundred eight million, nine hundred sixty-one thousand, seven hundred twenty-five".