42053717 has 2 divisors, whose sum is σ = 42053718. Its totient is φ = 42053716.

The previous prime is 42053653. The next prime is 42053749. The reversal of 42053717 is 71735024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37834801 + 4218916 = 6151^2 + 2054^2 .

It is a cyclic number.

It is not a de Polignac number, because 42053717 - 2⁶ = 42053653 is a prime.

It is a super-2 number, since 2×42053717² = 3537030227032178, which contains 22 as substring.

It is a Chen prime.

It is equal to p_2550674 and since 42053717 and 2550674 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42053717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42053317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21026858 + 21026859.

It is an arithmetic number, because the mean of its divisors is an integer number (21026859).

Almost surely, 2^42053717 is an apocalyptic number.

It is an amenable number.

42053717 is a deficient number, since it is larger than the sum of its proper divisors (1).

42053717 is an equidigital number, since it uses as much as digits as its factorization.

42053717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 42053717 is about 6484.8837306462. The cubic root of 42053717 is about 347.7507931994.

The spelling of 42053717 in words is "forty-two million, fifty-three thousand, seven hundred seventeen".