25989000139 has 2 divisors, whose sum is σ = 25989000140. Its totient is φ = 25989000138.

The previous prime is 25989000131. The next prime is 25989000161. The reversal of 25989000139 is 93100098952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25989000139 - 2³ = 25989000131 is a prime.

It is not a weakly prime, because it can be changed into another prime (25989000131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12994500069 + 12994500070.

It is an arithmetic number, because the mean of its divisors is an integer number (12994500070).

Almost surely, 2^25989000139 is an apocalyptic number.

25989000139 is a deficient number, since it is larger than the sum of its proper divisors (1).

25989000139 is an equidigital number, since it uses as much as digits as its factorization.

25989000139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 25989000139 in words is "twenty-five billion, nine hundred eighty-nine million, one hundred thirty-nine", and thus it is an aban number.