25560380 has 24 divisors (see below), whose sum is σ = 53887680. Its totient is φ = 10184000.

The previous prime is 25560349. The next prime is 25560389. The reversal of 25560380 is 8306552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25560389) 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, 3005 + ... + 7755.

It is an arithmetic number, because the mean of its divisors is an integer number (2245320).

Almost surely, 2^25560380 is an apocalyptic number.

25560380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25560380 is an abundant number, since it is smaller than the sum of its proper divisors (28327300).

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

25560380 is a wasteful number, since it uses less digits than its factorization.

25560380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029 (or 5027 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 25560380 is about 5055.7274451853. The cubic root of 25560380 is about 294.5703983370.

The spelling of 25560380 in words is "twenty-five million, five hundred sixty thousand, three hundred eighty".