550553839 has 16 divisors (see below), whose sum is σ = 612282240. Its totient is φ = 490814560.

The previous prime is 550553837. The next prime is 550553869. The reversal of 550553839 is 938355055.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 550553839 - 2¹ = 550553837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550553795 and 550553804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550553833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360732 + ... + 362254.

It is an arithmetic number, because the mean of its divisors is an integer number (38267640).

Almost surely, 2^550553839 is an apocalyptic number.

550553839 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

550553839 is a deficient number, since it is larger than the sum of its proper divisors (61728401).

550553839 is a wasteful number, since it uses less digits than its factorization.

550553839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150.

The product of its (nonzero) digits is 405000, while the sum is 43.

The square root of 550553839 is about 23463.8837151909. The cubic root of 550553839 is about 819.5961917190.

The spelling of 550553839 in words is "five hundred fifty million, five hundred fifty-three thousand, eight hundred thirty-nine".