25920206592 has 216 divisors, whose sum is σ = 83740358016. Its totient is φ = 7083546624.

The previous prime is 25920206539. The next prime is 25920206603. The reversal of 25920206592 is 29560202952.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850563 + ... + 880509.

Almost surely, 2^25920206592 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 25920206592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41870179008).

25920206592 is an abundant number, since it is smaller than the sum of its proper divisors (57820151424).

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

25920206592 is a wasteful number, since it uses less digits than its factorization.

25920206592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30003 (or 29982 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 25920206592 in words is "twenty-five billion, nine hundred twenty million, two hundred six thousand, five hundred ninety-two".