25792539139 has 8 divisors (see below), whose sum is σ = 25832227328. Its totient is φ = 25752884040.

The previous prime is 25792539137. The next prime is 25792539191. The reversal of 25792539139 is 93193529752.

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

It is a cyclic number.

It is not a de Polignac number, because 25792539139 - 2¹ = 25792539137 is a prime.

It is a super-2 number, since 2×25792539139² (a number of 22 digits) contains 22 as substring.

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 25792539139.

It is not an unprimeable number, because it can be changed into a prime (25792539131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861174 + ... + 1874980.

It is an arithmetic number, because the mean of its divisors is an integer number (3229028416).

Almost surely, 2^25792539139 is an apocalyptic number.

25792539139 is a deficient number, since it is larger than the sum of its proper divisors (39688189).

25792539139 is a wasteful number, since it uses less digits than its factorization.

25792539139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16545.

The product of its digits is 4592700, while the sum is 55.

The spelling of 25792539139 in words is "twenty-five billion, seven hundred ninety-two million, five hundred thirty-nine thousand, one hundred thirty-nine".