25466431 has 2 divisors, whose sum is σ = 25466432. Its totient is φ = 25466430.

The previous prime is 25466429. The next prime is 25466461. The reversal of 25466431 is 13466452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25466431 - 2¹ = 25466429 is a prime.

It is a super-2 number, since 2×25466431² = 1297078215755522, which contains 22 as substring.

Together with 25466429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25466393 and 25466402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25466411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12733215 + 12733216.

It is an arithmetic number, because the mean of its divisors is an integer number (12733216).

Almost surely, 2^25466431 is an apocalyptic number.

25466431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25466431 is an equidigital number, since it uses as much as digits as its factorization.

25466431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 25466431 is about 5046.4275482761. The cubic root of 25466431 is about 294.2090504174.

The spelling of 25466431 in words is "twenty-five million, four hundred sixty-six thousand, four hundred thirty-one".