549987319 has 24 divisors (see below), whose sum is σ = 680238000. Its totient is φ = 442108800.

The previous prime is 549987313. The next prime is 549987331. The reversal of 549987319 is 913789945.

It is not a de Polignac number, because 549987319 - 2⁵ = 549987287 is a prime.

It is a super-2 number, since 2×549987319² = 604972102121615522, 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 549987319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549987313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91107 + ... + 96955.

It is an arithmetic number, because the mean of its divisors is an integer number (28343250).

Almost surely, 2^549987319 is an apocalyptic number.

549987319 is a deficient number, since it is larger than the sum of its proper divisors (130250681).

549987319 is a wasteful number, since it uses less digits than its factorization.

549987319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5983 (or 5976 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 55.

The square root of 549987319 is about 23451.8084377303. The cubic root of 549987319 is about 819.3149736959.

The spelling of 549987319 in words is "five hundred forty-nine million, nine hundred eighty-seven thousand, three hundred nineteen".