549451859 has 16 divisors (see below), whose sum is σ = 605937024. Its totient is φ = 494083200.

The previous prime is 549451841. The next prime is 549451867. The reversal of 549451859 is 958154945.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549451859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (549451459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 854192 + ... + 854834.

It is an arithmetic number, because the mean of its divisors is an integer number (37871064).

Almost surely, 2^549451859 is an apocalyptic number.

549451859 is a deficient number, since it is larger than the sum of its proper divisors (56485165).

549451859 is a wasteful number, since it uses less digits than its factorization.

549451859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its digits is 1296000, while the sum is 50.

The square root of 549451859 is about 23440.3894805526. The cubic root of 549451859 is about 819.0489961410.

The spelling of 549451859 in words is "five hundred forty-nine million, four hundred fifty-one thousand, eight hundred fifty-nine".