25623622 has 4 divisors (see below), whose sum is σ = 38435436. Its totient is φ = 12811810.

The previous prime is 25623613. The next prime is 25623649. The reversal of 25623622 is 22632652.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 6405904 + ... + 6405907.

It is an arithmetic number, because the mean of its divisors is an integer number (9608859).

Almost surely, 2^25623622 is an apocalyptic number.

25623622 is a deficient number, since it is larger than the sum of its proper divisors (12811814).

25623622 is a wasteful number, since it uses less digits than its factorization.

25623622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12811813.

The product of its digits is 8640, while the sum is 28.

The square root of 25623622 is about 5061.9780718608. The cubic root of 25623622 is about 294.8131422236.

The spelling of 25623622 in words is "twenty-five million, six hundred twenty-three thousand, six hundred twenty-two".