25560331 has 2 divisors, whose sum is σ = 25560332. Its totient is φ = 25560330.

The previous prime is 25560323. The next prime is 25560347. The reversal of 25560331 is 13306552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25560331 - 2³ = 25560323 is a prime.

It is a super-2 number, since 2×25560331² = 1306661041659122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25560296 and 25560305.

It is not a weakly prime, because it can be changed into another prime (25560631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12780165 + 12780166.

It is an arithmetic number, because the mean of its divisors is an integer number (12780166).

Almost surely, 2^25560331 is an apocalyptic number.

25560331 is a deficient number, since it is larger than the sum of its proper divisors (1).

25560331 is an equidigital number, since it uses as much as digits as its factorization.

25560331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25560331 is about 5055.7225991939. The cubic root of 25560331 is about 294.5702101035.

Adding to 25560331 its reverse (13306552), we get a palindrome (38866883).

The spelling of 25560331 in words is "twenty-five million, five hundred sixty thousand, three hundred thirty-one".