54215233 has 4 divisors (see below), whose sum is σ = 54315988. Its totient is φ = 54114480.

The previous prime is 54215221. The next prime is 54215321. The reversal of 54215233 is 33251245.

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 10284849 + 43930384 = 3207^2 + 6628^2 .

It is a cyclic number.

It is not a de Polignac number, because 54215233 - 2¹⁷ = 54084161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54215198 and 54215207.

It is not an unprimeable number, because it can be changed into a prime (54215933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49566 + ... + 50647.

It is an arithmetic number, because the mean of its divisors is an integer number (13578997).

Almost surely, 2^54215233 is an apocalyptic number.

It is an amenable number.

54215233 is a deficient number, since it is larger than the sum of its proper divisors (100755).

54215233 is a wasteful number, since it uses less digits than its factorization.

54215233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100754.

The product of its digits is 3600, while the sum is 25.

The square root of 54215233 is about 7363.0994153278. The cubic root of 54215233 is about 378.4778281131.

Adding to 54215233 its reverse (33251245), we get a palindrome (87466478).

The spelling of 54215233 in words is "fifty-four million, two hundred fifteen thousand, two hundred thirty-three".