54261917 has 2 divisors, whose sum is σ = 54261918. Its totient is φ = 54261916.

The previous prime is 54261913. The next prime is 54261931. The reversal of 54261917 is 71916245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46977316 + 7284601 = 6854^2 + 2699^2 .

It is a cyclic number.

It is not a de Polignac number, because 54261917 - 2² = 54261913 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54261913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27130958 + 27130959.

It is an arithmetic number, because the mean of its divisors is an integer number (27130959).

Almost surely, 2^54261917 is an apocalyptic number.

It is an amenable number.

54261917 is a deficient number, since it is larger than the sum of its proper divisors (1).

54261917 is an equidigital number, since it uses as much as digits as its factorization.

54261917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 54261917 is about 7366.2688655791. The cubic root of 54261917 is about 378.5864309842.

The spelling of 54261917 in words is "fifty-four million, two hundred sixty-one thousand, nine hundred seventeen".