553143361 has 9 divisors (see below), whose sum is σ = 573582243. Its totient is φ = 533410920.

The previous prime is 553143359. The next prime is 553143379. The reversal of 553143361 is 163341355.

The square root of 553143361 is 23519.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 290054961 + 263088400 = 17031^2 + 16220^2 .

It is not a de Polignac number, because 553143361 - 2¹ = 553143359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553143301) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 681646 + ... + 682456.

Almost surely, 2^553143361 is an apocalyptic number.

553143361 is the 23519-th square number.

553143361 is the 11760-th centered octagonal number.

It is an amenable number.

553143361 is a deficient number, since it is larger than the sum of its proper divisors (20438882).

553143361 is an frugal number, since it uses more digits than its factorization.

553143361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 840 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The cubic root of 553143361 is about 820.8791685973.

The spelling of 553143361 in words is "five hundred fifty-three million, one hundred forty-three thousand, three hundred sixty-one".