25906023 has 24 divisors (see below), whose sum is σ = 43963920. Its totient is φ = 14492160.

The previous prime is 25906007. The next prime is 25906057. The reversal of 25906023 is 32060952.

25906023 is a `hidden beast` number, since 2 + 59 + 0 + 602 + 3 = 666.

It is not a de Polignac number, because 25906023 - 2⁴ = 25906007 is a prime.

It is a super-2 number, since 2×25906023² = 1342244055353058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25906003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8778 + ... + 11351.

It is an arithmetic number, because the mean of its divisors is an integer number (1831830).

Almost surely, 2^25906023 is an apocalyptic number.

25906023 is a deficient number, since it is larger than the sum of its proper divisors (18057897).

25906023 is a wasteful number, since it uses less digits than its factorization.

25906023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20159 (or 20156 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 25906023 is about 5089.7959684058. The cubic root of 25906023 is about 295.8922445309.

Adding to 25906023 its reverse (32060952), we get a palindrome (57966975).

The spelling of 25906023 in words is "twenty-five million, nine hundred six thousand, twenty-three".