25404033139 has 4 divisors (see below), whose sum is σ = 25604065024. Its totient is φ = 25204001256.

The previous prime is 25404033133. The next prime is 25404033143. The reversal of 25404033139 is 93133040452.

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 25404033139 - 2¹¹ = 25404031091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25404033133) 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, 100015752 + ... + 100016005.

It is an arithmetic number, because the mean of its divisors is an integer number (6401016256).

Almost surely, 2^25404033139 is an apocalyptic number.

25404033139 is a deficient number, since it is larger than the sum of its proper divisors (200031885).

25404033139 is a wasteful number, since it uses less digits than its factorization.

25404033139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200031884.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 25404033139 in words is "twenty-five billion, four hundred four million, thirty-three thousand, one hundred thirty-nine".