25323506 has 64 divisors (see below), whose sum is σ = 47029248. Its totient is φ = 10103808.

The previous prime is 25323469. The next prime is 25323533. The reversal of 25323506 is 60532352.

It is a super-2 number, since 2×25323506² = 1282559912264072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 477776 + ... + 477828.

It is an arithmetic number, because the mean of its divisors is an integer number (734832).

Almost surely, 2^25323506 is an apocalyptic number.

25323506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25323506 is a deficient number, since it is larger than the sum of its proper divisors (21705742).

25323506 is a wasteful number, since it uses less digits than its factorization.

25323506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 25323506 is about 5032.2466155784. The cubic root of 25323506 is about 293.6576220160.

Adding to 25323506 its reverse (60532352), we get a palindrome (85855858).

The spelling of 25323506 in words is "twenty-five million, three hundred twenty-three thousand, five hundred six".