25087774680 has 256 divisors, whose sum is σ = 86863104000. Its totient is φ = 6435984384.

The previous prime is 25087774627. The next prime is 25087774693. The reversal of 25087774680 is 8647778052.

It is a happy number.

25087774680 is a `hidden beast` number, since 2 + 508 + 7 + 7 + 74 + 68 + 0 = 666.

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

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, 2990652 + ... + 2999028.

It is an arithmetic number, because the mean of its divisors is an integer number (339309000).

Almost surely, 2^25087774680 is an apocalyptic number.

25087774680 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 25087774680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43431552000).

25087774680 is an abundant number, since it is smaller than the sum of its proper divisors (61775329320).

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

25087774680 is a wasteful number, since it uses less digits than its factorization.

25087774680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503 (or 8493 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 54.

The spelling of 25087774680 in words is "twenty-five billion, eighty-seven million, seven hundred seventy-four thousand, six hundred eighty".