54512917 has 2 divisors, whose sum is σ = 54512918. Its totient is φ = 54512916.

The previous prime is 54512893. The next prime is 54512959. The reversal of 54512917 is 71921545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51251281 + 3261636 = 7159^2 + 1806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54512917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54512977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27256458 + 27256459.

It is an arithmetic number, because the mean of its divisors is an integer number (27256459).

Almost surely, 2^54512917 is an apocalyptic number.

It is an amenable number.

54512917 is a deficient number, since it is larger than the sum of its proper divisors (1).

54512917 is an equidigital number, since it uses as much as digits as its factorization.

54512917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 34.

The square root of 54512917 is about 7383.2863279166. The cubic root of 54512917 is about 379.1692771439.

The spelling of 54512917 in words is "fifty-four million, five hundred twelve thousand, nine hundred seventeen".