25387042560 has 576 divisors, whose sum is σ = 92122458624. Its totient is φ = 5904793600.

The previous prime is 25387042553. The next prime is 25387042607. The reversal of 25387042560 is 6524078352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185306812 + ... + 185306948.

It is an arithmetic number, because the mean of its divisors is an integer number (159934824).

Almost surely, 2^25387042560 is an apocalyptic number.

25387042560 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 25387042560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46061229312).

25387042560 is an abundant number, since it is smaller than the sum of its proper divisors (66735416064).

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

25387042560 is a wasteful number, since it uses less digits than its factorization.

25387042560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 25387042560 in words is "twenty-five billion, three hundred eighty-seven million, forty-two thousand, five hundred sixty".