2531640125 has 64 divisors (see below), whose sum is σ = 3720038400. Its totient is φ = 1719312000.

The previous prime is 2531639993. The next prime is 2531640127. The reversal of 2531640125 is 5210461352.

It is not a de Polignac number, because 2531640125 - 2¹⁰ = 2531639101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531640127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5873660 + ... + 5874090.

It is an arithmetic number, because the mean of its divisors is an integer number (58125600).

Almost surely, 2^2531640125 is an apocalyptic number.

2531640125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2531640125 is a deficient number, since it is larger than the sum of its proper divisors (1188398275).

2531640125 is an equidigital number, since it uses as much as digits as its factorization.

2531640125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2531640125 is about 50315.4064377900. The cubic root of 2531640125 is about 1362.9104562542.

The spelling of 2531640125 in words is "two billion, five hundred thirty-one million, six hundred forty thousand, one hundred twenty-five".