25572550580 has 24 divisors (see below), whose sum is σ = 53745405000. Its totient is φ = 10220820480.

The previous prime is 25572550573. The next prime is 25572550583. The reversal of 25572550580 is 8505527552.

It can be written as a sum of positive squares in 4 ways, for example, as 8858197924 + 16714352656 = 94118^2 + 129284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25572550583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486881 + ... + 536840.

It is an arithmetic number, because the mean of its divisors is an integer number (2239391875).

Almost surely, 2^25572550580 is an apocalyptic number.

25572550580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25572550580 is an abundant number, since it is smaller than the sum of its proper divisors (28172854420).

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

25572550580 is a wasteful number, since it uses less digits than its factorization.

25572550580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024979 (or 1024977 counting only the distinct ones).

The product of its (nonzero) digits is 700000, while the sum is 44.

The spelling of 25572550580 in words is "twenty-five billion, five hundred seventy-two million, five hundred fifty thousand, five hundred eighty".