25763431 has 2 divisors, whose sum is σ = 25763432. Its totient is φ = 25763430.

The previous prime is 25763429. The next prime is 25763461. The reversal of 25763431 is 13436752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25763431 - 2¹ = 25763429 is a prime.

It is a super-2 number, since 2×25763431² = 1327508753783522, which contains 22 as substring.

Together with 25763429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25763393 and 25763402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25763461) 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, 12881715 + 12881716.

It is an arithmetic number, because the mean of its divisors is an integer number (12881716).

Almost surely, 2^25763431 is an apocalyptic number.

25763431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25763431 is an equidigital number, since it uses as much as digits as its factorization.

25763431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 25763431 is about 5075.7690057764. The cubic root of 25763431 is about 295.3483618030.

The spelling of 25763431 in words is "twenty-five million, seven hundred sixty-three thousand, four hundred thirty-one".