25204940544 has 288 divisors, whose sum is σ = 79258798080. Its totient is φ = 6961360896.

The previous prime is 25204940539. The next prime is 25204940591. The reversal of 25204940544 is 44504940252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24734467 + ... + 24735485.

It is an arithmetic number, because the mean of its divisors is an integer number (275204160).

Almost surely, 2^25204940544 is an apocalyptic number.

25204940544 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 25204940544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39629399040).

25204940544 is an abundant number, since it is smaller than the sum of its proper divisors (54053857536).

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

25204940544 is a wasteful number, since it uses less digits than its factorization.

25204940544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 25204940544 in words is "twenty-five billion, two hundred four million, nine hundred forty thousand, five hundred forty-four".