550556039 has 16 divisors (see below), whose sum is σ = 624136320. Its totient is φ = 481054560.

The previous prime is 550556021. The next prime is 550556053. The reversal of 550556039 is 930655055.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 550556039 - 2⁸ = 550555783 is a prime.

It is a super-2 number, since 2×550556039² = 606223904158739042, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 550555993 and 550556011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550556089) 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, 68612 + ... + 76214.

It is an arithmetic number, because the mean of its divisors is an integer number (39008520).

Almost surely, 2^550556039 is an apocalyptic number.

550556039 is a deficient number, since it is larger than the sum of its proper divisors (73580281).

550556039 is a wasteful number, since it uses less digits than its factorization.

550556039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7870.

The product of its (nonzero) digits is 101250, while the sum is 38.

The square root of 550556039 is about 23463.9305957037. The cubic root of 550556039 is about 819.5972834131.

The spelling of 550556039 in words is "five hundred fifty million, five hundred fifty-six thousand, thirty-nine".