2520345125 has 8 divisors (see below), whose sum is σ = 3145390872. Its totient is φ = 2016276000.

The previous prime is 2520345109. The next prime is 2520345133. The reversal of 2520345125 is 5215430252.

It can be written as a sum of positive squares in 4 ways, for example, as 123165604 + 2397179521 = 11098^2 + 48961^2 .

It is not a de Polignac number, because 2520345125 - 2⁴ = 2520345109 is a prime.

It is a super-2 number, since 2×2520345125² = 12704279098222531250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10081256 + ... + 10081505.

It is an arithmetic number, because the mean of its divisors is an integer number (393173859).

Almost surely, 2^2520345125 is an apocalyptic number.

2520345125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2520345125 is a deficient number, since it is larger than the sum of its proper divisors (625045747).

2520345125 is an equidigital number, since it uses as much as digits as its factorization.

2520345125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20162776 (or 20162766 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2520345125 is about 50203.0390016381. The cubic root of 2520345125 is about 1360.8805436959.

Adding to 2520345125 its reverse (5215430252), we get a palindrome (7735775377).

The spelling of 2520345125 in words is "two billion, five hundred twenty million, three hundred forty-five thousand, one hundred twenty-five".