549577748 has 6 divisors (see below), whose sum is σ = 961761066. Its totient is φ = 274788872.

The previous prime is 549577747. The next prime is 549577757. The reversal of 549577748 is 847775945.

It can be written as a sum of positive squares in only one way, i.e., 545783044 + 3794704 = 23362^2 + 1948^2 .

It is a junction number, because it is equal to n+sod(n) for n = 549577693 and 549577702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549577747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68697215 + ... + 68697222.

It is an arithmetic number, because the mean of its divisors is an integer number (160293511).

Almost surely, 2^549577748 is an apocalyptic number.

It is an amenable number.

549577748 is a deficient number, since it is larger than the sum of its proper divisors (412183318).

549577748 is a wasteful number, since it uses less digits than its factorization.

549577748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137394441 (or 137394439 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 56.

The square root of 549577748 is about 23443.0746277019. The cubic root of 549577748 is about 819.1115441657. Note that the first 3 decimals are identical.

The spelling of 549577748 in words is "five hundred forty-nine million, five hundred seventy-seven thousand, seven hundred forty-eight".