545211233 has 32 divisors (see below), whose sum is σ = 689762304. Its totient is φ = 420279552.

The previous prime is 545211217. The next prime is 545211263. The reversal of 545211233 is 332112545.

It is a happy number.

It is not a de Polignac number, because 545211233 - 2⁴ = 545211217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545211263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239366 + ... + 241632.

It is an arithmetic number, because the mean of its divisors is an integer number (21555072).

Almost surely, 2^545211233 is an apocalyptic number.

It is an amenable number.

545211233 is a deficient number, since it is larger than the sum of its proper divisors (144551071).

545211233 is a wasteful number, since it uses less digits than its factorization.

545211233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381.

The product of its digits is 3600, while the sum is 26.

The square root of 545211233 is about 23349.7587353703. The cubic root of 545211233 is about 816.9364334576.

Adding to 545211233 its reverse (332112545), we get a palindrome (877323778).

The spelling of 545211233 in words is "five hundred forty-five million, two hundred eleven thousand, two hundred thirty-three".