2509656925 has 12 divisors (see below), whose sum is σ = 3212361856. Its totient is φ = 1942959600.

The previous prime is 2509656893. The next prime is 2509656931. The reversal of 2509656925 is 5296569052.

It is not a de Polignac number, because 2509656925 - 2⁵ = 2509656893 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1618359 + ... + 1619908.

Almost surely, 2^2509656925 is an apocalyptic number.

2509656925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2509656925 is a deficient number, since it is larger than the sum of its proper divisors (702704931).

2509656925 is a wasteful number, since it uses less digits than its factorization.

2509656925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238308 (or 3238303 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 49.

The square root of 2509656925 is about 50096.4761734795. The cubic root of 2509656925 is about 1358.9540915030.

The spelling of 2509656925 in words is "two billion, five hundred nine million, six hundred fifty-six thousand, nine hundred twenty-five".