25298469504 has 672 divisors, whose sum is σ = 96083094240. Its totient is φ = 6557967360.

The previous prime is 25298469463. The next prime is 25298469517. The reversal of 25298469504 is 40596489252.

25298469504 is a `hidden beast` number, since 2 + 5 + 2 + 98 + 46 + 9 + 504 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 83 ways as a sum of consecutive naturals, for example, 50294917 + ... + 50295419.

It is an arithmetic number, because the mean of its divisors is an integer number (142980795).

Almost surely, 2^25298469504 is an apocalyptic number.

25298469504 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 25298469504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48041547120).

25298469504 is an abundant number, since it is smaller than the sum of its proper divisors (70784624736).

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

25298469504 is an equidigital number, since it uses as much as digits as its factorization.

25298469504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 25298469504 in words is "twenty-five billion, two hundred ninety-eight million, four hundred sixty-nine thousand, five hundred four".