25051036660 has 96 divisors (see below), whose sum is σ = 58167631872. Its totient is φ = 9004577280.

The previous prime is 25051036649. The next prime is 25051036691. The reversal of 25051036660 is 6663015052.

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, 2328654 + ... + 2339386.

It is an arithmetic number, because the mean of its divisors is an integer number (605912832).

Almost surely, 2^25051036660 is an apocalyptic number.

25051036660 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 25051036660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29083815936).

25051036660 is an abundant number, since it is smaller than the sum of its proper divisors (33116595212).

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

25051036660 is a wasteful number, since it uses less digits than its factorization.

25051036660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10993 (or 10991 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 25051036660 in words is "twenty-five billion, fifty-one million, thirty-six thousand, six hundred sixty".