212554424533 has 4 divisors (see below), whose sum is σ = 231877554048. Its totient is φ = 193231295020.

The previous prime is 212554424521. The next prime is 212554424539. The reversal of 212554424533 is 335424455212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212554424533 - 2²⁹ = 212017553621 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212554424539) 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, 9661564741 + ... + 9661564762.

It is an arithmetic number, because the mean of its divisors is an integer number (57969388512).

Almost surely, 2^212554424533 is an apocalyptic number.

It is an amenable number.

212554424533 is a deficient number, since it is larger than the sum of its proper divisors (19323129515).

212554424533 is a wasteful number, since it uses less digits than its factorization.

212554424533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19323129514.

The product of its digits is 576000, while the sum is 40.

Adding to 212554424533 its reverse (335424455212), we get a palindrome (547978879745).

The spelling of 212554424533 in words is "two hundred twelve billion, five hundred fifty-four million, four hundred twenty-four thousand, five hundred thirty-three".