54331213 has 2 divisors, whose sum is σ = 54331214. Its totient is φ = 54331212.

The previous prime is 54331183. The next prime is 54331217. The reversal of 54331213 is 31213345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45198729 + 9132484 = 6723^2 + 3022^2 .

It is a cyclic number.

It is not a de Polignac number, because 54331213 - 2¹³ = 54323021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54331217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27165606 + 27165607.

It is an arithmetic number, because the mean of its divisors is an integer number (27165607).

Almost surely, 2^54331213 is an apocalyptic number.

It is an amenable number.

54331213 is a deficient number, since it is larger than the sum of its proper divisors (1).

54331213 is an equidigital number, since it uses as much as digits as its factorization.

54331213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 54331213 is about 7370.9709672471. The cubic root of 54331213 is about 378.7475222674.

Adding to 54331213 its reverse (31213345), we get a palindrome (85544558).

The spelling of 54331213 in words is "fifty-four million, three hundred thirty-one thousand, two hundred thirteen".