25027989504 has 312 divisors, whose sum is σ = 78392194848. Its totient is φ = 7080837120.

The previous prime is 25027989491. The next prime is 25027989521. The reversal of 25027989504 is 40598972052.

It is a super-2 number, since 2×25027989504² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118615959 + ... + 118616169.

Almost surely, 2^25027989504 is an apocalyptic number.

25027989504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25027989504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39196097424).

25027989504 is an abundant number, since it is smaller than the sum of its proper divisors (53364205344).

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

25027989504 is a wasteful number, since it uses less digits than its factorization.

25027989504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 25027989504 in words is "twenty-five billion, twenty-seven million, nine hundred eighty-nine thousand, five hundred four".