25564000060 has 12 divisors (see below), whose sum is σ = 53684400168. Its totient is φ = 10225600016.

The previous prime is 25564000051. The next prime is 25564000061. The reversal of 25564000060 is 6000046552.

It is a junction number, because it is equal to n+sod(n) for n = 25563999992 and 25564000028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25564000061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639099982 + ... + 639100021.

It is an arithmetic number, because the mean of its divisors is an integer number (4473700014).

Almost surely, 2^25564000060 is an apocalyptic number.

25564000060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25564000060 is an abundant number, since it is smaller than the sum of its proper divisors (28120400108).

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

25564000060 is a wasteful number, since it uses less digits than its factorization.

25564000060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278200012 (or 1278200010 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 25564000060 in words is "twenty-five billion, five hundred sixty-four million, sixty", and thus it is an aban number.