25426005 has 16 divisors (see below), whose sum is σ = 44380224. Its totient is φ = 12327680.

The previous prime is 25426001. The next prime is 25426021. The reversal of 25426005 is 50062452.

It is not a de Polignac number, because 25426005 - 2² = 25426001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25426001) 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 15 ways as a sum of consecutive naturals, for example, 76884 + ... + 77213.

It is an arithmetic number, because the mean of its divisors is an integer number (2773764).

Almost surely, 2^25426005 is an apocalyptic number.

It is an amenable number.

25426005 is a deficient number, since it is larger than the sum of its proper divisors (18954219).

25426005 is a wasteful number, since it uses less digits than its factorization.

25426005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154116.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25426005 is about 5042.4205496963. The cubic root of 25426005 is about 294.0532898913.

Adding to 25426005 its reverse (50062452), we get a palindrome (75488457).

The spelling of 25426005 in words is "twenty-five million, four hundred twenty-six thousand, five".