25092423664 has 160 divisors (see below), whose sum is σ = 61664624640. Its totient is φ = 9607852800.

The previous prime is 25092423661. The next prime is 25092423677. The reversal of 25092423664 is 46632429052.

It is a self number, because there is not a number n which added to its sum of digits gives 25092423664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25092423661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27543369 + ... + 27544279.

It is an arithmetic number, because the mean of its divisors is an integer number (385403904).

Almost surely, 2^25092423664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25092423664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30832312320).

25092423664 is an abundant number, since it is smaller than the sum of its proper divisors (36572200976).

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

25092423664 is a wasteful number, since it uses less digits than its factorization.

25092423664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 25092423664 in words is "twenty-five billion, ninety-two million, four hundred twenty-three thousand, six hundred sixty-four".