2549188382 has 16 divisors (see below), whose sum is σ = 4195618560. Its totient is φ = 1154348832.

The previous prime is 2549188381. The next prime is 2549188387. The reversal of 2549188382 is 2838819452.

It is a super-2 number, since 2×2549188382² = 12996722813847555848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2549188382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549188381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923582 + ... + 926337.

It is an arithmetic number, because the mean of its divisors is an integer number (262226160).

Almost surely, 2^2549188382 is an apocalyptic number.

2549188382 is a deficient number, since it is larger than the sum of its proper divisors (1646430178).

2549188382 is a wasteful number, since it uses less digits than its factorization.

2549188382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849987.

The product of its digits is 1105920, while the sum is 50.

The square root of 2549188382 is about 50489.4878365784. The cubic root of 2549188382 is about 1366.0522475366.

The spelling of 2549188382 in words is "two billion, five hundred forty-nine million, one hundred eighty-eight thousand, three hundred eighty-two".