25163895900 has 144 divisors (see below), whose sum is σ = 85536275328. Its totient is φ = 5631072000.

The previous prime is 25163895893. The next prime is 25163895901. The reversal of 25163895900 is 959836152.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25163895900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25163895901) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 250386 + ... + 336185.

It is an arithmetic number, because the mean of its divisors is an integer number (594001912).

Almost surely, 2^25163895900 is an apocalyptic number.

25163895900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25163895900 is an abundant number, since it is smaller than the sum of its proper divisors (60372379428).

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

25163895900 is a wasteful number, since it uses less digits than its factorization.

25163895900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586612 (or 586605 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 25163895900 in words is "twenty-five billion, one hundred sixty-three million, eight hundred ninety-five thousand, nine hundred".