550552061 has 4 divisors (see below), whose sum is σ = 550628124. Its totient is φ = 550476000.

The previous prime is 550552049. The next prime is 550552063. The reversal of 550552061 is 160255055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 546671161 + 3880900 = 23381^2 + 1970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550552061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550552063) 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, 25880 + ... + 42081.

It is an arithmetic number, because the mean of its divisors is an integer number (137657031).

Almost surely, 2^550552061 is an apocalyptic number.

It is an amenable number.

550552061 is a deficient number, since it is larger than the sum of its proper divisors (76063).

550552061 is an equidigital number, since it uses as much as digits as its factorization.

550552061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76062.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 550552061 is about 23463.8458271444. The cubic root of 550552061 is about 819.5953094295.

The spelling of 550552061 in words is "five hundred fifty million, five hundred fifty-two thousand, sixty-one".