54221213 has 8 divisors (see below), whose sum is σ = 56332800. Its totient is φ = 52125808.

The previous prime is 54221207. The next prime is 54221239. The reversal of 54221213 is 31212245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54221213 - 2⁶ = 54221149 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 (54221513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3020 + ... + 10842.

It is an arithmetic number, because the mean of its divisors is an integer number (7041600).

Almost surely, 2^54221213 is an apocalyptic number.

It is an amenable number.

54221213 is a deficient number, since it is larger than the sum of its proper divisors (2111587).

54221213 is a wasteful number, since it uses less digits than its factorization.

54221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8091.

The product of its digits is 480, while the sum is 20.

The square root of 54221213 is about 7363.5054831242. The cubic root of 54221213 is about 378.4917431088.

Adding to 54221213 its reverse (31212245), we get a palindrome (85433458).

The spelling of 54221213 in words is "fifty-four million, two hundred twenty-one thousand, two hundred thirteen".