423545533 has 4 divisors (see below), whose sum is σ = 423602080. Its totient is φ = 423488988.

The previous prime is 423545527. The next prime is 423545543. The reversal of 423545533 is 335545324.

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 a de Polignac number, because none of the positive numbers 2^k-423545533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423545503) 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, 14943 + ... + 32716.

It is an arithmetic number, because the mean of its divisors is an integer number (105900520).

Almost surely, 2^423545533 is an apocalyptic number.

It is an amenable number.

423545533 is a deficient number, since it is larger than the sum of its proper divisors (56547).

423545533 is an equidigital number, since it uses as much as digits as its factorization.

423545533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56546.

The product of its digits is 108000, while the sum is 34.

The square root of 423545533 is about 20580.2218889885. The cubic root of 423545533 is about 750.9886416923.

The spelling of 423545533 in words is "four hundred twenty-three million, five hundred forty-five thousand, five hundred thirty-three".