25802930159 has 4 divisors (see below), whose sum is σ = 25805502840. Its totient is φ = 25800357480.

The previous prime is 25802930147. The next prime is 25802930173. The reversal of 25802930159 is 95103920852.

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 25802930159 - 2²⁰ = 25801881583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25802920159) 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, 1271237 + ... + 1291374.

It is an arithmetic number, because the mean of its divisors is an integer number (6451375710).

Almost surely, 2^25802930159 is an apocalyptic number.

25802930159 is a deficient number, since it is larger than the sum of its proper divisors (2572681).

25802930159 is a wasteful number, since it uses less digits than its factorization.

25802930159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572680.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 25802930159 in words is "twenty-five billion, eight hundred two million, nine hundred thirty thousand, one hundred fifty-nine".