42666053 has 2 divisors, whose sum is σ = 42666054. Its totient is φ = 42666052.

The previous prime is 42665957. The next prime is 42666059. The reversal of 42666053 is 35066624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36204289 + 6461764 = 6017^2 + 2542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42666053 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 (42666059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21333026 + 21333027.

It is an arithmetic number, because the mean of its divisors is an integer number (21333027).

Almost surely, 2^42666053 is an apocalyptic number.

It is an amenable number.

42666053 is a deficient number, since it is larger than the sum of its proper divisors (1).

42666053 is an equidigital number, since it uses as much as digits as its factorization.

42666053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 42666053 is about 6531.9256731840. The cubic root of 42666053 is about 349.4305106140.

The spelling of 42666053 in words is "forty-two million, six hundred sixty-six thousand, fifty-three".