543042251 has 4 divisors (see below), whose sum is σ = 548024400. Its totient is φ = 538060104.

The previous prime is 543042209. The next prime is 543042257. The reversal of 543042251 is 152240345.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 543042251 - 2¹⁴ = 543025867 is a prime.

It is a super-2 number, since 2×543042251² = 589789772742294002, which contains 22 as substring.

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 543042251.

It is not an unprimeable number, because it can be changed into a prime (543042257) 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, 2490911 + ... + 2491128.

It is an arithmetic number, because the mean of its divisors is an integer number (137006100).

Almost surely, 2^543042251 is an apocalyptic number.

543042251 is a deficient number, since it is larger than the sum of its proper divisors (4982149).

543042251 is a wasteful number, since it uses less digits than its factorization.

543042251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982148.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 543042251 is about 23303.2669598063. The cubic root of 543042251 is about 815.8516702025.

Adding to 543042251 its reverse (152240345), we get a palindrome (695282596).

The spelling of 543042251 in words is "five hundred forty-three million, forty-two thousand, two hundred fifty-one".