25226839 has 16 divisors (see below), whose sum is σ = 29399040. Its totient is φ = 21420000.

The previous prime is 25226779. The next prime is 25226843. The reversal of 25226839 is 93862252.

It is a cyclic number.

It is not a de Polignac number, because 25226839 - 2¹¹ = 25224791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25226798 and 25226807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25226879) 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, 8614 + ... + 11164.

It is an arithmetic number, because the mean of its divisors is an integer number (1837440).

Almost surely, 2^25226839 is an apocalyptic number.

25226839 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

25226839 is a deficient number, since it is larger than the sum of its proper divisors (4172201).

25226839 is a wasteful number, since it uses less digits than its factorization.

25226839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622.

The product of its digits is 51840, while the sum is 37.

The square root of 25226839 is about 5022.6326761968. The cubic root of 25226839 is about 293.2834874267.

The spelling of 25226839 in words is "twenty-five million, two hundred twenty-six thousand, eight hundred thirty-nine".