25498916352 has 960 divisors, whose sum is σ = 99199900800. Its totient is φ = 6242697216.

The previous prime is 25498916327. The next prime is 25498916381. The reversal of 25498916352 is 25361989452.

25498916352 is a `hidden beast` number, since 2 + 5 + 498 + 91 + 63 + 5 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 349300188 + ... + 349300260.

It is an arithmetic number, because the mean of its divisors is an integer number (103333230).

Almost surely, 2^25498916352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25498916352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49599950400).

25498916352 is an abundant number, since it is smaller than the sum of its proper divisors (73700984448).

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

25498916352 is a wasteful number, since it uses less digits than its factorization.

25498916352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 115 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The spelling of 25498916352 in words is "twenty-five billion, four hundred ninety-eight million, nine hundred sixteen thousand, three hundred fifty-two".