2520785125 has 16 divisors (see below), whose sum is σ = 3254425200. Its totient is φ = 1947086400.

The previous prime is 2520785117. The next prime is 2520785161. The reversal of 2520785125 is 5215870252.

It can be written as a sum of positive squares in 8 ways, for example, as 636704289 + 1884080836 = 25233^2 + 43406^2 .

It is not a de Polignac number, because 2520785125 - 2³ = 2520785117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344070 + ... + 351319.

It is an arithmetic number, because the mean of its divisors is an integer number (203401575).

Almost surely, 2^2520785125 is an apocalyptic number.

2520785125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2520785125 is a deficient number, since it is larger than the sum of its proper divisors (733640075).

2520785125 is an equidigital number, since it uses as much as digits as its factorization.

2520785125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695433 (or 695423 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 2520785125 is about 50207.4210152244. The cubic root of 2520785125 is about 1360.9597329296.

The spelling of 2520785125 in words is "two billion, five hundred twenty million, seven hundred eighty-five thousand, one hundred twenty-five".