25457423 has 2 divisors, whose sum is σ = 25457424. Its totient is φ = 25457422.

The previous prime is 25457407. The next prime is 25457429. The reversal of 25457423 is 32475452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25457423 - 2⁴ = 25457407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25457423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25457429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12728711 + 12728712.

It is an arithmetic number, because the mean of its divisors is an integer number (12728712).

Almost surely, 2^25457423 is an apocalyptic number.

25457423 is a deficient number, since it is larger than the sum of its proper divisors (1).

25457423 is an equidigital number, since it uses as much as digits as its factorization.

25457423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 32.

The square root of 25457423 is about 5045.5349567712. The cubic root of 25457423 is about 294.1743570640.

The spelling of 25457423 in words is "twenty-five million, four hundred fifty-seven thousand, four hundred twenty-three".