25422079 has 4 divisors (see below), whose sum is σ = 25476984. Its totient is φ = 25367176.

The previous prime is 25422053. The next prime is 25422109. The reversal of 25422079 is 97022452.

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

It is a cyclic number.

It is not a de Polignac number, because 25422079 - 2¹⁹ = 24897791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25422079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25422029) 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, 26752 + ... + 27685.

It is an arithmetic number, because the mean of its divisors is an integer number (6369246).

Almost surely, 2^25422079 is an apocalyptic number.

25422079 is a deficient number, since it is larger than the sum of its proper divisors (54905).

25422079 is an equidigital number, since it uses as much as digits as its factorization.

25422079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54904.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 25422079 is about 5042.0312375074. The cubic root of 25422079 is about 294.0381543029.

The spelling of 25422079 in words is "twenty-five million, four hundred twenty-two thousand, seventy-nine".