25323642 has 24 divisors (see below), whose sum is σ = 58096116. Its totient is φ = 7944576.

The previous prime is 25323631. The next prime is 25323677. The reversal of 25323642 is 24632352.

It can be written as a sum of positive squares in 2 ways, for example, as 20875761 + 4447881 = 4569^2 + 2109^2 .

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 11 ways as a sum of consecutive naturals, for example, 41073 + ... + 41684.

Almost surely, 2^25323642 is an apocalyptic number.

25323642 is an abundant number, since it is smaller than the sum of its proper divisors (32772474).

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

25323642 is a wasteful number, since it uses less digits than its factorization.

25323642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82782 (or 82779 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 25323642 is about 5032.2601284115. The cubic root of 25323642 is about 293.6581477116.

Adding to 25323642 its reverse (24632352), we get a palindrome (49955994).

The spelling of 25323642 in words is "twenty-five million, three hundred twenty-three thousand, six hundred forty-two".