25223406 has 16 divisors (see below), whose sum is σ = 54327504. Its totient is φ = 7761024.

The previous prime is 25223399. The next prime is 25223411. The reversal of 25223406 is 60432252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161611 + ... + 161766.

It is an arithmetic number, because the mean of its divisors is an integer number (3395469).

Almost surely, 2^25223406 is an apocalyptic number.

25223406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25223406 is an abundant number, since it is smaller than the sum of its proper divisors (29104098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25223406 is a wasteful number, since it uses less digits than its factorization.

25223406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323395.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 25223406 is about 5022.2909115263. The cubic root of 25223406 is about 293.2701829736.

Adding to 25223406 its reverse (60432252), we get a palindrome (85655658).

The spelling of 25223406 in words is "twenty-five million, two hundred twenty-three thousand, four hundred six".