550649377 has 4 divisors (see below), whose sum is σ = 550697796. Its totient is φ = 550600960.

The previous prime is 550649353. The next prime is 550649387. The reversal of 550649377 is 773946055.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 308037601 + 242611776 = 17551^2 + 15576^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550649377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550649347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3177 + ... + 33337.

It is an arithmetic number, because the mean of its divisors is an integer number (137674449).

Almost surely, 2^550649377 is an apocalyptic number.

It is an amenable number.

550649377 is a deficient number, since it is larger than the sum of its proper divisors (48419).

550649377 is a wasteful number, since it uses less digits than its factorization.

550649377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48418.

The product of its (nonzero) digits is 793800, while the sum is 46.

The square root of 550649377 is about 23465.9194791084. The cubic root of 550649377 is about 819.6435973473.

The spelling of 550649377 in words is "five hundred fifty million, six hundred forty-nine thousand, three hundred seventy-seven".