550559953 has 4 divisors (see below), whose sum is σ = 559585588. Its totient is φ = 541534320.

The previous prime is 550559929. The next prime is 550559959. The reversal of 550559953 is 359955055.

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 44849809 + 505710144 = 6697^2 + 22488^2 .

It is a cyclic number.

It is not a de Polignac number, because 550559953 - 2¹⁷ = 550428881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550559959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4512726 + ... + 4512847.

It is an arithmetic number, because the mean of its divisors is an integer number (139896397).

Almost surely, 2^550559953 is an apocalyptic number.

It is an amenable number.

550559953 is a deficient number, since it is larger than the sum of its proper divisors (9025635).

550559953 is an equidigital number, since it uses as much as digits as its factorization.

550559953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9025634.

The product of its (nonzero) digits is 759375, while the sum is 46.

The square root of 550559953 is about 23464.0140001663. The cubic root of 550559953 is about 819.5992256291.

The spelling of 550559953 in words is "five hundred fifty million, five hundred fifty-nine thousand, nine hundred fifty-three".