25489680556032 has 3360 divisors, whose sum is σ = 105870437544960. Its totient is φ = 6069908275200.

The previous prime is 25489680556007. The next prime is 25489680556033. The reversal of 25489680556032 is 23065508698452.

25489680556032 is a `hidden beast` number, since 2 + 5 + 4 + 8 + 9 + 68 + 0 + 5 + 560 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25489680556033) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 822247759857 + ... + 822247759887.

Almost surely, 2^{25489680556032} is an apocalyptic number.

25489680556032 is a gapful number since it is divisible by the number (22) 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 25489680556032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52935218772480).

25489680556032 is an abundant number, since it is smaller than the sum of its proper divisors (80380756988928).

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

25489680556032 is an equidigital number, since it uses as much as digits as its factorization.

25489680556032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 63.

The spelling of 25489680556032 in words is "twenty-five trillion, four hundred eighty-nine billion, six hundred eighty million, five hundred fifty-six thousand, thirty-two".