54690917 has 2 divisors, whose sum is σ = 54690918. Its totient is φ = 54690916.

The previous prime is 54690907. The next prime is 54690947. The reversal of 54690917 is 71909645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35628961 + 19061956 = 5969^2 + 4366^2 .

It is a cyclic number.

It is not a de Polignac number, because 54690917 - 2¹⁰ = 54689893 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 (54690907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27345458 + 27345459.

It is an arithmetic number, because the mean of its divisors is an integer number (27345459).

Almost surely, 2^54690917 is an apocalyptic number.

It is an amenable number.

54690917 is a deficient number, since it is larger than the sum of its proper divisors (1).

54690917 is an equidigital number, since it uses as much as digits as its factorization.

54690917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 54690917 is about 7395.3307566329. The cubic root of 54690917 is about 379.5815268623.

The spelling of 54690917 in words is "fifty-four million, six hundred ninety thousand, nine hundred seventeen".