25025502502 has 32 divisors (see below), whose sum is σ = 50401016064. Its totient is φ = 9000180000.

The previous prime is 25025502473. The next prime is 25025502517. The reversal of 25025502502 is 20520552052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6248124 + ... + 6252127.

It is an arithmetic number, because the mean of its divisors is an integer number (1575031752).

Almost surely, 2^25025502502 is an apocalyptic number.

25025502502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25025502502 is an abundant number, since it is smaller than the sum of its proper divisors (25375513562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25025502502 is a wasteful number, since it uses less digits than its factorization.

25025502502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12500284.

The product of its (nonzero) digits is 10000, while the sum is 28.

It can be divided in two parts, 2502550 and 2502, that added together give a palindrome (2505052).

The spelling of 25025502502 in words is "twenty-five billion, twenty-five million, five hundred two thousand, five hundred two".