25619332480 has 576 divisors, whose sum is σ = 78681559680. Its totient is φ = 7942717440.

The previous prime is 25619332463. The next prime is 25619332489. The reversal of 25619332480 is 8423391652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25619332489) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 350949724 + ... + 350949796.

It is an arithmetic number, because the mean of its divisors is an integer number (136599930).

Almost surely, 2^25619332480 is an apocalyptic number.

25619332480 is a gapful number since it is divisible by the number (20) 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 25619332480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39340779840).

25619332480 is an abundant number, since it is smaller than the sum of its proper divisors (53062227200).

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

25619332480 is a wasteful number, since it uses less digits than its factorization.

25619332480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 25619332480 in words is "twenty-five billion, six hundred nineteen million, three hundred thirty-two thousand, four hundred eighty".