25125000139 has 4 divisors (see below), whose sum is σ = 25125452856. Its totient is φ = 25124547424.

The previous prime is 25125000127. The next prime is 25125000161. The reversal of 25125000139 is 93100052152.

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 25125000139 - 2⁷ = 25125000011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25125000239) 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, 129214 + ... + 258739.

It is an arithmetic number, because the mean of its divisors is an integer number (6281363214).

Almost surely, 2^25125000139 is an apocalyptic number.

25125000139 is a deficient number, since it is larger than the sum of its proper divisors (452717).

25125000139 is an equidigital number, since it uses as much as digits as its factorization.

25125000139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452716.

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 25125000139 in words is "twenty-five billion, one hundred twenty-five million, one hundred thirty-nine", and thus it is an aban number.