25501523484 has 12 divisors (see below), whose sum is σ = 59503554824. Its totient is φ = 8500507824.

The previous prime is 25501523471. The next prime is 25501523501. The reversal of 25501523484 is 48432510552.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1062563467 + ... + 1062563490.

Almost surely, 2^25501523484 is an apocalyptic number.

It is an amenable number.

25501523484 is an abundant number, since it is smaller than the sum of its proper divisors (34002031340).

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

25501523484 is a wasteful number, since it uses less digits than its factorization.

25501523484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125126964 (or 2125126962 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 25501523484 in words is "twenty-five billion, five hundred one million, five hundred twenty-three thousand, four hundred eighty-four".