2500126500139 has 4 divisors (see below), whose sum is σ = 2505526341856. Its totient is φ = 2494726658424.

The previous prime is 2500126500127. The next prime is 2500126500143. The reversal of 2500126500139 is 9310056210052.

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 2500126500139 - 2⁵ = 2500126500107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500126500539) 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, 2699920164 + ... + 2699921089.

It is an arithmetic number, because the mean of its divisors is an integer number (626381585464).

Almost surely, 2^{2500126500139} is an apocalyptic number.

2500126500139 is a deficient number, since it is larger than the sum of its proper divisors (5399841717).

2500126500139 is an equidigital number, since it uses as much as digits as its factorization.

2500126500139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399841716.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 2500126500139 in words is "two trillion, five hundred billion, one hundred twenty-six million, five hundred thousand, one hundred thirty-nine".