2551344625 has 16 divisors (see below), whose sum is σ = 3187806336. Its totient is φ = 2038686000.

The previous prime is 2551344617. The next prime is 2551344659. The reversal of 2551344625 is 5264431552.

It is not a de Polignac number, because 2551344625 - 2³ = 2551344617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99370 + ... + 122380.

It is an arithmetic number, because the mean of its divisors is an integer number (199237896).

Almost surely, 2^2551344625 is an apocalyptic number.

2551344625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2551344625 is a deficient number, since it is larger than the sum of its proper divisors (636461711).

2551344625 is an equidigital number, since it uses as much as digits as its factorization.

2551344625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23913 (or 23903 counting only the distinct ones).

The product of its digits is 144000, while the sum is 37.

The square root of 2551344625 is about 50510.8367085718. The cubic root of 2551344625 is about 1366.4372995669.

The spelling of 2551344625 in words is "two billion, five hundred fifty-one million, three hundred forty-four thousand, six hundred twenty-five".