54331513 has 2 divisors, whose sum is σ = 54331514. Its totient is φ = 54331512.

The previous prime is 54331493. The next prime is 54331517. The reversal of 54331513 is 31513345.

54331513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50808384 + 3523129 = 7128^2 + 1877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54331513 is a prime.

It is not a weakly prime, because it can be changed into another prime (54331517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27165756 + 27165757.

It is an arithmetic number, because the mean of its divisors is an integer number (27165757).

Almost surely, 2^54331513 is an apocalyptic number.

It is an amenable number.

54331513 is a deficient number, since it is larger than the sum of its proper divisors (1).

54331513 is an equidigital number, since it uses as much as digits as its factorization.

54331513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 25.

The square root of 54331513 is about 7370.9913173195. The cubic root of 54331513 is about 378.7482193746.

Adding to 54331513 its reverse (31513345), we get a palindrome (85844858).

The spelling of 54331513 in words is "fifty-four million, three hundred thirty-one thousand, five hundred thirteen".