25423493 has 4 divisors (see below), whose sum is σ = 25441248. Its totient is φ = 25405740.

The previous prime is 25423471. The next prime is 25423507. The reversal of 25423493 is 39432452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25423493 - 2²⁴ = 8646277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25423393) 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 in 3 ways as a sum of consecutive naturals, for example, 6521 + ... + 9662.

It is an arithmetic number, because the mean of its divisors is an integer number (6360312).

Almost surely, 2^25423493 is an apocalyptic number.

It is an amenable number.

25423493 is a deficient number, since it is larger than the sum of its proper divisors (17755).

25423493 is a wasteful number, since it uses less digits than its factorization.

25423493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17754.

The product of its digits is 25920, while the sum is 32.

The square root of 25423493 is about 5042.1714568229. The cubic root of 25423493 is about 294.0436057616.

The spelling of 25423493 in words is "twenty-five million, four hundred twenty-three thousand, four hundred ninety-three".