2552721625 has 16 divisors (see below), whose sum is σ = 3187237248. Its totient is φ = 2041254000.

The previous prime is 2552721601. The next prime is 2552721637. The reversal of 2552721625 is 5261272552.

It is not a de Polignac number, because 2552721625 - 2⁵ = 2552721593 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, 456094 + ... + 461656.

It is an arithmetic number, because the mean of its divisors is an integer number (199202328).

Almost surely, 2^2552721625 is an apocalyptic number.

2552721625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2552721625 is a deficient number, since it is larger than the sum of its proper divisors (634515623).

2552721625 is an equidigital number, since it uses as much as digits as its factorization.

2552721625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9249 (or 9239 counting only the distinct ones).

The product of its digits is 84000, while the sum is 37.

The square root of 2552721625 is about 50524.4656082576. The cubic root of 2552721625 is about 1366.6830844415.

The spelling of 2552721625 in words is "two billion, five hundred fifty-two million, seven hundred twenty-one thousand, six hundred twenty-five".