25906045 has 32 divisors (see below), whose sum is σ = 36391680. Its totient is φ = 17495040.

The previous prime is 25906007. The next prime is 25906057. The reversal of 25906045 is 54060952.

It is not a de Polignac number, because 25906045 - 2⁹ = 25905533 is a prime.

It is a super-2 number, since 2×25906045² = 1342246335084050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25905998 and 25906016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96171 + ... + 96439.

It is an arithmetic number, because the mean of its divisors is an integer number (1137240).

Almost surely, 2^25906045 is an apocalyptic number.

It is an amenable number.

25906045 is a deficient number, since it is larger than the sum of its proper divisors (10485635).

25906045 is a wasteful number, since it uses less digits than its factorization.

25906045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 25906045 is about 5089.7981295922. The cubic root of 25906045 is about 295.8923282905.

Adding to 25906045 its reverse (54060952), we get a palindrome (79966997).

The spelling of 25906045 in words is "twenty-five million, nine hundred six thousand, forty-five".