53766917 has 2 divisors, whose sum is σ = 53766918. Its totient is φ = 53766916.

The previous prime is 53766907. The next prime is 53766929. The reversal of 53766917 is 71966735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46226401 + 7540516 = 6799^2 + 2746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53766917 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 (53766907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26883458 + 26883459.

It is an arithmetic number, because the mean of its divisors is an integer number (26883459).

Almost surely, 2^53766917 is an apocalyptic number.

It is an amenable number.

53766917 is a deficient number, since it is larger than the sum of its proper divisors (1).

53766917 is an equidigital number, since it uses as much as digits as its factorization.

53766917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 44.

The square root of 53766917 is about 7332.5927883662. The cubic root of 53766917 is about 377.4317043826.

The spelling of 53766917 in words is "fifty-three million, seven hundred sixty-six thousand, nine hundred seventeen".