543955253 has 4 divisors (see below), whose sum is σ = 546773868. Its totient is φ = 541136640.

The previous prime is 543955249. The next prime is 543955261. The reversal of 543955253 is 352559345.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 113060689 + 430894564 = 10633^2 + 20758^2 .

It is a cyclic number.

It is not a de Polignac number, because 543955253 - 2² = 543955249 is a prime.

It is a Duffinian number.

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 543955253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543955553) 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, 1409018 + ... + 1409403.

It is an arithmetic number, because the mean of its divisors is an integer number (136693467).

Almost surely, 2^543955253 is an apocalyptic number.

It is an amenable number.

543955253 is a deficient number, since it is larger than the sum of its proper divisors (2818615).

543955253 is a wasteful number, since it uses less digits than its factorization.

543955253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818614.

The product of its digits is 405000, while the sum is 41.

The square root of 543955253 is about 23322.8483037557. The cubic root of 543955253 is about 816.3086371937.

The spelling of 543955253 in words is "five hundred forty-three million, nine hundred fifty-five thousand, two hundred fifty-three".