550032553 has 4 divisors (see below), whose sum is σ = 628608640. Its totient is φ = 471456468.

The previous prime is 550032551. The next prime is 550032563. The reversal of 550032553 is 355230055.

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.

It is not a de Polignac number, because 550032553 - 2¹ = 550032551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550032551) 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, 39288033 + ... + 39288046.

It is an arithmetic number, because the mean of its divisors is an integer number (157152160).

Almost surely, 2^550032553 is an apocalyptic number.

It is an amenable number.

550032553 is a deficient number, since it is larger than the sum of its proper divisors (78576087).

550032553 is an equidigital number, since it uses as much as digits as its factorization.

550032553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78576086.

The product of its (nonzero) digits is 11250, while the sum is 28.

The square root of 550032553 is about 23452.7728211399. The cubic root of 550032553 is about 819.3374347456.

The spelling of 550032553 in words is "five hundred fifty million, thirty-two thousand, five hundred fifty-three".