2520540125 has 8 divisors (see below), whose sum is σ = 3145634232. Its totient is φ = 2016432000.

The previous prime is 2520540107. The next prime is 2520540137. The reversal of 2520540125 is 5210450252.

It can be written as a sum of positive squares in 4 ways, for example, as 198916 + 2520341209 = 446^2 + 50203^2 .

It is not a de Polignac number, because 2520540125 - 2⁸ = 2520539869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2520540094 and 2520540103.

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, 10082036 + ... + 10082285.

It is an arithmetic number, because the mean of its divisors is an integer number (393204279).

Almost surely, 2^2520540125 is an apocalyptic number.

2520540125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2520540125 is a deficient number, since it is larger than the sum of its proper divisors (625094107).

2520540125 is an equidigital number, since it uses as much as digits as its factorization.

2520540125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20164336 (or 20164326 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2520540125 is about 50204.9810775783. The cubic root of 2520540125 is about 1360.9156400616.

Adding to 2520540125 its reverse (5210450252), we get a palindrome (7730990377).

The spelling of 2520540125 in words is "two billion, five hundred twenty million, five hundred forty thousand, one hundred twenty-five".