25315034100 has 36 divisors (see below), whose sum is σ = 73244832864. Its totient is φ = 6750675680.

The previous prime is 25315034083. The next prime is 25315034149. The reversal of 25315034100 is 143051352.

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 11 ways as a sum of consecutive naturals, for example, 42191424 + ... + 42192023.

Almost surely, 2^25315034100 is an apocalyptic number.

25315034100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25315034100 is an abundant number, since it is smaller than the sum of its proper divisors (47929798764).

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

25315034100 is a wasteful number, since it uses less digits than its factorization.

25315034100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84383464 (or 84383457 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 25315034100 its reverse (143051352), we get a palindrome (25458085452).

The spelling of 25315034100 in words is "twenty-five billion, three hundred fifteen million, thirty-four thousand, one hundred".