25623042 has 8 divisors (see below), whose sum is σ = 51246096. Its totient is φ = 8541012.

The previous prime is 25623023. The next prime is 25623049. The reversal of 25623042 is 24032652.

It is a sphenic number, since it is the product of 3 distinct primes.

25623042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25623049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2135248 + ... + 2135259.

It is an arithmetic number, because the mean of its divisors is an integer number (6405762).

Almost surely, 2^25623042 is an apocalyptic number.

25623042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25623042 is a wasteful number, since it uses less digits than its factorization.

25623042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270512.

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

The square root of 25623042 is about 5061.9207816796. The cubic root of 25623042 is about 294.8109178059.

Adding to 25623042 its reverse (24032652), we get a palindrome (49655694).

The spelling of 25623042 in words is "twenty-five million, six hundred twenty-three thousand, forty-two".