54311213 has 6 divisors (see below), whose sum is σ = 59697582. Its totient is φ = 49373720.

The previous prime is 54311203. The next prime is 54311221. The reversal of 54311213 is 31211345.

It can be written as a sum of positive squares in only one way, i.e., 53027524 + 1283689 = 7282^2 + 1133^2 .

It is not a de Polignac number, because 54311213 - 2⁶ = 54311149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54311203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224306 + ... + 224547.

It is an arithmetic number, because the mean of its divisors is an integer number (9949597).

Almost surely, 2^54311213 is an apocalyptic number.

It is an amenable number.

54311213 is a deficient number, since it is larger than the sum of its proper divisors (5386369).

54311213 is a wasteful number, since it uses less digits than its factorization.

54311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448875 (or 448864 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 54311213 is about 7369.6141690051. The cubic root of 54311213 is about 378.7010426614.

Adding to 54311213 its reverse (31211345), we get a palindrome (85522558).

The spelling of 54311213 in words is "fifty-four million, three hundred eleven thousand, two hundred thirteen".