25580240253 has 6 divisors (see below), whose sum is σ = 36949235934. Its totient is φ = 17053493496.

The previous prime is 25580240149. The next prime is 25580240267. The reversal of 25580240253 is 35204208552.

It is a happy number.

25580240253 is a `hidden beast` number, since 2 + 5 + 580 + 24 + 0 + 2 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12892921209 + 12687319044 = 113547^2 + 112638^2 .

It is not a de Polignac number, because 25580240253 - 2¹⁴ = 25580223869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25580240293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1421124450 + ... + 1421124467.

It is an arithmetic number, because the mean of its divisors is an integer number (6158205989).

Almost surely, 2^25580240253 is an apocalyptic number.

It is an amenable number.

25580240253 is a deficient number, since it is larger than the sum of its proper divisors (11368995681).

25580240253 is a wasteful number, since it uses less digits than its factorization.

25580240253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842248923 (or 2842248920 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 25580240253 in words is "twenty-five billion, five hundred eighty million, two hundred forty thousand, two hundred fifty-three".