25012125502 has 128 divisors (see below), whose sum is σ = 49927449600. Its totient is φ = 9122927616.

The previous prime is 25012125497. The next prime is 25012125503. The reversal of 25012125502 is 20552121052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25012125503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20619448 + ... + 20620660.

It is an arithmetic number, because the mean of its divisors is an integer number (390058200).

Almost surely, 2^25012125502 is an apocalyptic number.

25012125502 is a deficient number, since it is larger than the sum of its proper divisors (24915324098).

25012125502 is a wasteful number, since it uses less digits than its factorization.

25012125502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 25012125502 its reverse (20552121052), we get a palindrome (45564246554).

The spelling of 25012125502 in words is "twenty-five billion, twelve million, one hundred twenty-five thousand, five hundred two".