2162500639 has 4 divisors (see below), whose sum is σ = 2328846856. Its totient is φ = 1996154424.

The previous prime is 2162500621. The next prime is 2162500649. The reversal of 2162500639 is 9360052612.

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 2162500639 - 2¹³ = 2162492447 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 (2162500609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83173089 + ... + 83173114.

It is an arithmetic number, because the mean of its divisors is an integer number (582211714).

Almost surely, 2^2162500639 is an apocalyptic number.

2162500639 is a deficient number, since it is larger than the sum of its proper divisors (166346217).

2162500639 is a wasteful number, since it uses less digits than its factorization.

2162500639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166346216.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 2162500639 is about 46502.6949649157. The cubic root of 2162500639 is about 1293.1594608448.

The spelling of 2162500639 in words is "two billion, one hundred sixty-two million, five hundred thousand, six hundred thirty-nine".