553044243 has 4 divisors (see below), whose sum is σ = 737392328. Its totient is φ = 368696160.

The previous prime is 553044227. The next prime is 553044251. The reversal of 553044243 is 342440355.

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

It is not a de Polignac number, because 553044243 - 2⁴ = 553044227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 553044243.

It is not an unprimeable number, because it can be changed into a prime (553044263) 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, 92174038 + ... + 92174043.

It is an arithmetic number, because the mean of its divisors is an integer number (184348082).

Almost surely, 2^553044243 is an apocalyptic number.

553044243 is a deficient number, since it is larger than the sum of its proper divisors (184348085).

553044243 is a wasteful number, since it uses less digits than its factorization.

553044243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184348084.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 553044243 is about 23516.8927156629. The cubic root of 553044243 is about 820.8301344363.

Adding to 553044243 its reverse (342440355), we get a palindrome (895484598).

The spelling of 553044243 in words is "five hundred fifty-three million, forty-four thousand, two hundred forty-three".