549939777 has 8 divisors (see below), whose sum is σ = 742535040. Its totient is φ = 361985520.

The previous prime is 549939773. The next prime is 549939787. The reversal of 549939777 is 777939945.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 549939777 - 2² = 549939773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 549939777.

It is not an unprimeable number, because it can be changed into a prime (549939773) 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, 1159974 + ... + 1160447.

It is an arithmetic number, because the mean of its divisors is an integer number (92816880).

Almost surely, 2^549939777 is an apocalyptic number.

It is an amenable number.

549939777 is a deficient number, since it is larger than the sum of its proper divisors (192595263).

549939777 is a wasteful number, since it uses less digits than its factorization.

549939777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320503.

The product of its digits is 15002820, while the sum is 60.

The square root of 549939777 is about 23450.7948052939. The cubic root of 549939777 is about 819.2913652759.

The spelling of 549939777 in words is "five hundred forty-nine million, nine hundred thirty-nine thousand, seven hundred seventy-seven".