25430131 has 2 divisors, whose sum is σ = 25430132. Its totient is φ = 25430130.

The previous prime is 25430123. The next prime is 25430161. The reversal of 25430131 is 13103452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25430131 - 2³ = 25430123 is a prime.

It is a super-2 number, since 2×25430131² = 1293383125354322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25430099 and 25430108.

It is not a weakly prime, because it can be changed into another prime (25430101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12715065 + 12715066.

It is an arithmetic number, because the mean of its divisors is an integer number (12715066).

Almost surely, 2^25430131 is an apocalyptic number.

25430131 is a deficient number, since it is larger than the sum of its proper divisors (1).

25430131 is an equidigital number, since it uses as much as digits as its factorization.

25430131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 25430131 is about 5042.8296620053. The cubic root of 25430131 is about 294.0691948444.

Adding to 25430131 its reverse (13103452), we get a palindrome (38533583).

The spelling of 25430131 in words is "twenty-five million, four hundred thirty thousand, one hundred thirty-one".