2520660325 has 12 divisors (see below), whose sum is σ = 3127835520. Its totient is φ = 2015098160.

The previous prime is 2520660293. The next prime is 2520660391. The reversal of 2520660325 is 5230660252.

It is not a de Polignac number, because 2520660325 - 2⁵ = 2520660293 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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 942 + ... + 71008.

It is an arithmetic number, because the mean of its divisors is an integer number (260652960).

Almost surely, 2^2520660325 is an apocalyptic number.

2520660325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2520660325 is a deficient number, since it is larger than the sum of its proper divisors (607175195).

2520660325 is a wasteful number, since it uses less digits than its factorization.

2520660325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71516 (or 71511 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 2520660325 is about 50206.1781556812. The cubic root of 2520660325 is about 1360.9372729196.

The spelling of 2520660325 in words is "two billion, five hundred twenty million, six hundred sixty thousand, three hundred twenty-five".