25102555412 has 48 divisors (see below), whose sum is σ = 49552097280. Its totient is φ = 11023624800.

The previous prime is 25102555403. The next prime is 25102555417. The reversal of 25102555412 is 21455520152.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25102555417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812789 + ... + 843107.

It is an arithmetic number, because the mean of its divisors is an integer number (1032335360).

Almost surely, 2^25102555412 is an apocalyptic number.

25102555412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25102555412 is a deficient number, since it is larger than the sum of its proper divisors (24449541868).

25102555412 is a wasteful number, since it uses less digits than its factorization.

25102555412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30972 (or 30970 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 25102555412 in words is "twenty-five billion, one hundred two million, five hundred fifty-five thousand, four hundred twelve".