25254021488 has 10 divisors (see below), whose sum is σ = 48929666664. Its totient is φ = 12627010736.

The previous prime is 25254021479. The next prime is 25254021491. The reversal of 25254021488 is 88412045252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 789188156 + ... + 789188187.

Almost surely, 2^25254021488 is an apocalyptic number.

It is an amenable number.

25254021488 is a deficient number, since it is larger than the sum of its proper divisors (23675645176).

25254021488 is a wasteful number, since it uses less digits than its factorization.

25254021488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578376351 (or 1578376345 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 41.

The spelling of 25254021488 in words is "twenty-five billion, two hundred fifty-four million, twenty-one thousand, four hundred eighty-eight".