25122423 has 16 divisors (see below), whose sum is σ = 34390656. Its totient is φ = 16307040.

The previous prime is 25122403. The next prime is 25122451. The reversal of 25122423 is 32422152.

It is not a de Polignac number, because 25122423 - 2¹⁰ = 25121399 is a prime.

It is a super-2 number, since 2×25122423² = 1262272274781858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25122423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25122403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18940 + ... + 20222.

It is an arithmetic number, because the mean of its divisors is an integer number (2149416).

Almost surely, 2^25122423 is an apocalyptic number.

25122423 is a deficient number, since it is larger than the sum of its proper divisors (9268233).

25122423 is a wasteful number, since it uses less digits than its factorization.

25122423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454.

The product of its digits is 960, while the sum is 21.

The square root of 25122423 is about 5012.2273491932. The cubic root of 25122423 is about 292.8782862160.

Adding to 25122423 its reverse (32422152), we get a palindrome (57544575).

The spelling of 25122423 in words is "twenty-five million, one hundred twenty-two thousand, four hundred twenty-three".