54216013 has 2 divisors, whose sum is σ = 54216014. Its totient is φ = 54216012.

The previous prime is 54215971. The next prime is 54216023. The reversal of 54216013 is 31061245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53319204 + 896809 = 7302^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 54216013 - 2¹⁷ = 54084941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54216023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27108006 + 27108007.

It is an arithmetic number, because the mean of its divisors is an integer number (27108007).

Almost surely, 2^54216013 is an apocalyptic number.

It is an amenable number.

54216013 is a deficient number, since it is larger than the sum of its proper divisors (1).

54216013 is an equidigital number, since it uses as much as digits as its factorization.

54216013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 54216013 is about 7363.1523819625. The cubic root of 54216013 is about 378.4796431706.

Adding to 54216013 its reverse (31061245), we get a palindrome (85277258).

The spelling of 54216013 in words is "fifty-four million, two hundred sixteen thousand, thirteen".