551133445 has 4 divisors (see below), whose sum is σ = 661360140. Its totient is φ = 440906752.

The previous prime is 551133433. The next prime is 551133497. The reversal of 551133445 is 544331155.

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 86601636 + 464531809 = 9306^2 + 21553^2 .

It is a cyclic number.

It is not a de Polignac number, because 551133445 - 2⁵ = 551133413 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 55113340 + ... + 55113349.

It is an arithmetic number, because the mean of its divisors is an integer number (165340035).

Almost surely, 2^551133445 is an apocalyptic number.

It is an amenable number.

551133445 is a deficient number, since it is larger than the sum of its proper divisors (110226695).

551133445 is a wasteful number, since it uses less digits than its factorization.

551133445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110226694.

The product of its digits is 18000, while the sum is 31.

The square root of 551133445 is about 23476.2314905949. The cubic root of 551133445 is about 819.8837059944.

The spelling of 551133445 in words is "five hundred fifty-one million, one hundred thirty-three thousand, four hundred forty-five".