54649613 has 2 divisors, whose sum is σ = 54649614. Its totient is φ = 54649612.

The previous prime is 54649583. The next prime is 54649631. The reversal of 54649613 is 31694645.

Together with next prime (54649631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50737129 + 3912484 = 7123^2 + 1978^2 .

It is a cyclic number.

It is not a de Polignac number, because 54649613 - 2⁶ = 54649549 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54649313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27324806 + 27324807.

It is an arithmetic number, because the mean of its divisors is an integer number (27324807).

Almost surely, 2^54649613 is an apocalyptic number.

It is an amenable number.

54649613 is a deficient number, since it is larger than the sum of its proper divisors (1).

54649613 is an equidigital number, since it uses as much as digits as its factorization.

54649613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 54649613 is about 7392.5376563126. The cubic root of 54649613 is about 379.4859461896.

The spelling of 54649613 in words is "fifty-four million, six hundred forty-nine thousand, six hundred thirteen".