25596275220 has 288 divisors, whose sum is σ = 84887712000. Its totient is φ = 6218311680.

The previous prime is 25596275219. The next prime is 25596275227. The reversal of 25596275220 is 2257269552.

25596275220 is a `hidden beast` number, since 2 + 5 + 596 + 2 + 7 + 52 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25596275227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40564305 + ... + 40564935.

It is an arithmetic number, because the mean of its divisors is an integer number (294749000).

Almost surely, 2^25596275220 is an apocalyptic number.

25596275220 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 25596275220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42443856000).

25596275220 is an abundant number, since it is smaller than the sum of its proper divisors (59291436780).

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

25596275220 is a wasteful number, since it uses less digits than its factorization.

25596275220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 25596275220 in words is "twenty-five billion, five hundred ninety-six million, two hundred seventy-five thousand, two hundred twenty".