2500137525 has 12 divisors (see below), whose sum is σ = 4133560832. Its totient is φ = 1333406640.

The previous prime is 2500137509. The next prime is 2500137527. The reversal of 2500137525 is 5257310052.

It is not a de Polignac number, because 2500137525 - 2⁴ = 2500137509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2500137492 and 2500137501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500137527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16667509 + ... + 16667658.

Almost surely, 2^2500137525 is an apocalyptic number.

2500137525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2500137525 is a deficient number, since it is larger than the sum of its proper divisors (1633423307).

2500137525 is a wasteful number, since it uses less digits than its factorization.

2500137525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33335180 (or 33335175 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 2500137525 is about 50001.3752310874. The cubic root of 2500137525 is about 1357.2336945266.

Adding to 2500137525 its reverse (5257310052), we get a palindrome (7757447577).

It can be divided in two parts, 25001 and 37525, that added together give a palindrome (62526).

The spelling of 2500137525 in words is "two billion, five hundred million, one hundred thirty-seven thousand, five hundred twenty-five".