25473431 has 2 divisors, whose sum is σ = 25473432. Its totient is φ = 25473430.

The previous prime is 25473419. The next prime is 25473439. The reversal of 25473431 is 13437452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25473431 is a prime.

It is a super-2 number, since 2×25473431² = 1297791373823522, 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 = 25473394 and 25473403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25473439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12736715 + 12736716.

It is an arithmetic number, because the mean of its divisors is an integer number (12736716).

Almost surely, 2^25473431 is an apocalyptic number.

25473431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25473431 is an equidigital number, since it uses as much as digits as its factorization.

25473431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 29.

The square root of 25473431 is about 5047.1210605651. The cubic root of 25473431 is about 294.2360045240.

The spelling of 25473431 in words is "twenty-five million, four hundred seventy-three thousand, four hundred thirty-one".