25559039 has 4 divisors (see below), whose sum is σ = 27882600. Its totient is φ = 23235480.

The previous prime is 25559033. The next prime is 25559057. The reversal of 25559039 is 93095552.

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 25559039 - 2²⁰ = 24510463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25558993 and 25559011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25559033) 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, 1161764 + ... + 1161785.

It is an arithmetic number, because the mean of its divisors is an integer number (6970650).

Almost surely, 2^25559039 is an apocalyptic number.

25559039 is a deficient number, since it is larger than the sum of its proper divisors (2323561).

25559039 is a wasteful number, since it uses less digits than its factorization.

25559039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323560.

The product of its (nonzero) digits is 60750, while the sum is 38.

The square root of 25559039 is about 5055.5948215813. The cubic root of 25559039 is about 294.5652467989.

The spelling of 25559039 in words is "twenty-five million, five hundred fifty-nine thousand, thirty-nine".