553544243 has 16 divisors (see below), whose sum is σ = 672592896. Its totient is φ = 445267680.

The previous prime is 553544227. The next prime is 553544249. The reversal of 553544243 is 342445355.

It is a cyclic number.

It is not a de Polignac number, because 553544243 - 2⁴ = 553544227 is a prime.

It is a super-2 number, since 2×553544243² = 612822457916886098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (553544249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23903 + ... + 40968.

It is an arithmetic number, because the mean of its divisors is an integer number (42037056).

Almost surely, 2^553544243 is an apocalyptic number.

553544243 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

553544243 is a deficient number, since it is larger than the sum of its proper divisors (119048653).

553544243 is a wasteful number, since it uses less digits than its factorization.

553544243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64954.

The product of its digits is 144000, while the sum is 35.

The square root of 553544243 is about 23527.5209701320. The cubic root of 553544243 is about 821.0774271565.

Adding to 553544243 its reverse (342445355), we get a palindrome (895989598).

The spelling of 553544243 in words is "five hundred fifty-three million, five hundred forty-four thousand, two hundred forty-three".