25788131 has 2 divisors, whose sum is σ = 25788132. Its totient is φ = 25788130.

The previous prime is 25788127. The next prime is 25788137. The reversal of 25788131 is 13188752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25788131 - 2² = 25788127 is a prime.

It is a super-2 number, since 2×25788131² = 1330055400946322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25788091 and 25788100.

It is not a weakly prime, because it can be changed into another prime (25788137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12894065 + 12894066.

It is an arithmetic number, because the mean of its divisors is an integer number (12894066).

Almost surely, 2^25788131 is an apocalyptic number.

25788131 is a deficient number, since it is larger than the sum of its proper divisors (1).

25788131 is an equidigital number, since it uses as much as digits as its factorization.

25788131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 25788131 is about 5078.2015517307. The cubic root of 25788131 is about 295.4427174350.

It can be divided in two parts, 257 and 88131, that added together give a palindrome (88388).

The spelling of 25788131 in words is "twenty-five million, seven hundred eighty-eight thousand, one hundred thirty-one".