25923939 has 8 divisors (see below), whose sum is σ = 35499600. Its totient is φ = 16815456.

The previous prime is 25923907. The next prime is 25923977. The reversal of 25923939 is 93932952.

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

It is not a de Polignac number, because 25923939 - 2⁵ = 25923907 is a prime.

It is a super-2 number, since 2×25923939² = 1344101226551442, 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 25923939.

It is not an unprimeable number, because it can be changed into a prime (25923739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116664 + ... + 116885.

It is an arithmetic number, because the mean of its divisors is an integer number (4437450).

Almost surely, 2^25923939 is an apocalyptic number.

25923939 is a deficient number, since it is larger than the sum of its proper divisors (9575661).

25923939 is a wasteful number, since it uses less digits than its factorization.

25923939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233589.

The product of its digits is 131220, while the sum is 42.

The square root of 25923939 is about 5091.5556561821. Note that the first 3 decimals coincide. The cubic root of 25923939 is about 295.9604395328.

It can be divided in two parts, 25923 and 939, that added together give a palindrome (26862).

The spelling of 25923939 in words is "twenty-five million, nine hundred twenty-three thousand, nine hundred thirty-nine".