54481213 has 2 divisors, whose sum is σ = 54481214. Its totient is φ = 54481212.

The previous prime is 54481199. The next prime is 54481223. The reversal of 54481213 is 31218445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35497764 + 18983449 = 5958^2 + 4357^2 .

It is a cyclic number.

It is not a de Polignac number, because 54481213 - 2¹³ = 54473021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54481223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27240606 + 27240607.

It is an arithmetic number, because the mean of its divisors is an integer number (27240607).

Almost surely, 2^54481213 is an apocalyptic number.

It is an amenable number.

54481213 is a deficient number, since it is larger than the sum of its proper divisors (1).

54481213 is an equidigital number, since it uses as much as digits as its factorization.

54481213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

The square root of 54481213 is about 7381.1390042459. The cubic root of 54481213 is about 379.0957562573.

Adding to 54481213 its reverse (31218445), we get a palindrome (85699658).

The spelling of 54481213 in words is "fifty-four million, four hundred eighty-one thousand, two hundred thirteen".