551342433 has 16 divisors (see below), whose sum is σ = 753500160. Its totient is φ = 358472016.

The previous prime is 551342381. The next prime is 551342443. The reversal of 551342433 is 334243155.

It is a de Polignac number, because none of the positive numbers 2^k-551342433 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 551342433.

It is not an unprimeable number, because it can be changed into a prime (551342443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10216 + ... + 34742.

It is an arithmetic number, because the mean of its divisors is an integer number (47093760).

Almost surely, 2^551342433 is an apocalyptic number.

It is an amenable number.

551342433 is a deficient number, since it is larger than the sum of its proper divisors (202157727).

551342433 is a wasteful number, since it uses less digits than its factorization.

551342433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24716.

The product of its digits is 21600, while the sum is 30.

The square root of 551342433 is about 23480.6821238226. The cubic root of 551342433 is about 819.9873253048.

Adding to 551342433 its reverse (334243155), we get a palindrome (885585588).

It can be divided in two parts, 551342 and 433, that added together give a triangular number (551775 = T₁₀₅₀).

The spelling of 551342433 in words is "five hundred fifty-one million, three hundred forty-two thousand, four hundred thirty-three".