25113524420 has 24 divisors (see below), whose sum is σ = 52742043648. Its totient is φ = 10044716000.

The previous prime is 25113524419. The next prime is 25113524437. The reversal of 25113524420 is 2442531152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333245 + ... + 401595.

It is an arithmetic number, because the mean of its divisors is an integer number (2197585152).

Almost surely, 2^25113524420 is an apocalyptic number.

25113524420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25113524420 is an abundant number, since it is smaller than the sum of its proper divisors (27628519228).

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

25113524420 is a wasteful number, since it uses less digits than its factorization.

25113524420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86731 (or 86729 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 25113524420 in words is "twenty-five billion, one hundred thirteen million, five hundred twenty-four thousand, four hundred twenty".