2549423431 has 16 divisors (see below), whose sum is σ = 2737532160. Its totient is φ = 2368396800.

The previous prime is 2549423417. The next prime is 2549423467. The reversal of 2549423431 is 1343249452.

It is a cyclic number.

It is not a de Polignac number, because 2549423431 - 2¹⁷ = 2549292359 is a prime.

It is a super-2 number, since 2×2549423431² = 12999119661063623522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549423131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169831 + ... + 184231.

It is an arithmetic number, because the mean of its divisors is an integer number (171095760).

Almost surely, 2^2549423431 is an apocalyptic number.

2549423431 is a deficient number, since it is larger than the sum of its proper divisors (188108729).

2549423431 is a wasteful number, since it uses less digits than its factorization.

2549423431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14646.

The product of its digits is 103680, while the sum is 37.

The square root of 2549423431 is about 50491.8154852843. The cubic root of 2549423431 is about 1366.0942320559.

The spelling of 2549423431 in words is "two billion, five hundred forty-nine million, four hundred twenty-three thousand, four hundred thirty-one".