25620442 has 8 divisors (see below), whose sum is σ = 38457216. Its totient is φ = 12801372.

The previous prime is 25620433. The next prime is 25620443. The reversal of 25620442 is 24402652.

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

It is not an unprimeable number, because it can be changed into a prime (25620443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133 + ... + 7159.

It is an arithmetic number, because the mean of its divisors is an integer number (4807152).

Almost surely, 2^25620442 is an apocalyptic number.

25620442 is a deficient number, since it is larger than the sum of its proper divisors (12836774).

25620442 is a wasteful number, since it uses less digits than its factorization.

25620442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 25620442 is about 5061.6639556573. The cubic root of 25620442 is about 294.8009458659.

It can be divided in two parts, 25620 and 442, that added together give a palindrome (26062).

The spelling of 25620442 in words is "twenty-five million, six hundred twenty thousand, four hundred forty-two".