549663477 has 32 divisors (see below), whose sum is σ = 842762880. Its totient is φ = 315544320.

The previous prime is 549663473. The next prime is 549663479. The reversal of 549663477 is 774366945.

It is not a de Polignac number, because 549663477 - 2² = 549663473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549663473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45303 + ... + 56139.

It is an arithmetic number, because the mean of its divisors is an integer number (26336340).

Almost surely, 2^549663477 is an apocalyptic number.

It is an amenable number.

549663477 is a deficient number, since it is larger than the sum of its proper divisors (293099403).

549663477 is a wasteful number, since it uses less digits than its factorization.

549663477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10933.

The product of its digits is 3810240, while the sum is 51.

The square root of 549663477 is about 23444.9030068371. The cubic root of 549663477 is about 819.1541332036.

The spelling of 549663477 in words is "five hundred forty-nine million, six hundred sixty-three thousand, four hundred seventy-seven".