550409377 has 4 divisors (see below), whose sum is σ = 629039296. Its totient is φ = 471779460.

The previous prime is 550409369. The next prime is 550409381. The reversal of 550409377 is 773904055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773904055 = 5 ⋅154780811.

It is a cyclic number.

It is not a de Polignac number, because 550409377 - 2³ = 550409369 is a prime.

It is a super-3 number, since 3×550409377³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550409317) 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, 39314949 + ... + 39314962.

It is an arithmetic number, because the mean of its divisors is an integer number (157259824).

Almost surely, 2^550409377 is an apocalyptic number.

It is an amenable number.

550409377 is a deficient number, since it is larger than the sum of its proper divisors (78629919).

550409377 is an equidigital number, since it uses as much as digits as its factorization.

550409377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78629918.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 550409377 is about 23460.8051225869. The cubic root of 550409377 is about 819.5244997523.

The spelling of 550409377 in words is "five hundred fifty million, four hundred nine thousand, three hundred seventy-seven".