25424423 has 8 divisors (see below), whose sum is σ = 25978992. Its totient is φ = 24875136.

The previous prime is 25424419. The next prime is 25424429. The reversal of 25424423 is 32442452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25424423 - 2² = 25424419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25424392 and 25424401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25424429) 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 7 ways as a sum of consecutive naturals, for example, 9311 + ... + 11727.

It is an arithmetic number, because the mean of its divisors is an integer number (3247374).

Almost surely, 2^25424423 is an apocalyptic number.

25424423 is a deficient number, since it is larger than the sum of its proper divisors (554569).

25424423 is a wasteful number, since it uses less digits than its factorization.

25424423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its digits is 7680, while the sum is 26.

The square root of 25424423 is about 5042.2636781509. The cubic root of 25424423 is about 294.0471911228.

Adding to 25424423 its reverse (32442452), we get a palindrome (57866875).

The spelling of 25424423 in words is "twenty-five million, four hundred twenty-four thousand, four hundred twenty-three".