25012043452 has 12 divisors (see below), whose sum is σ = 47750264856. Its totient is φ = 11369110640.

The previous prime is 25012043449. The next prime is 25012043471. The reversal of 25012043452 is 25434021052.

It is a self number, because there is not a number n which added to its sum of digits gives 25012043452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284227723 + ... + 284227810.

It is an arithmetic number, because the mean of its divisors is an integer number (3979188738).

Almost surely, 2^25012043452 is an apocalyptic number.

25012043452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25012043452 is a deficient number, since it is larger than the sum of its proper divisors (22738221404).

25012043452 is a wasteful number, since it uses less digits than its factorization.

25012043452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568455548 (or 568455546 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 25012043452 in words is "twenty-five billion, twelve million, forty-three thousand, four hundred fifty-two".