2506426189 has 4 divisors (see below), whose sum is σ = 2506670656. Its totient is φ = 2506181724.

The previous prime is 2506426171. The next prime is 2506426231. The reversal of 2506426189 is 9816246052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2506426189 - 2⁵ = 2506426157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506426159) 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, 106149 + ... + 127594.

It is an arithmetic number, because the mean of its divisors is an integer number (626667664).

Almost surely, 2^2506426189 is an apocalyptic number.

It is an amenable number.

2506426189 is a deficient number, since it is larger than the sum of its proper divisors (244467).

2506426189 is a wasteful number, since it uses less digits than its factorization.

2506426189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244466.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 2506426189 is about 50064.2206470849. The cubic root of 2506426189 is about 1358.3707040325.

The spelling of 2506426189 in words is "two billion, five hundred six million, four hundred twenty-six thousand, one hundred eighty-nine".