40066051 has 2 divisors, whose sum is σ = 40066052. Its totient is φ = 40066050.

The previous prime is 40066031. The next prime is 40066099. The reversal of 40066051 is 15066004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40066051 - 2²¹ = 37968899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40066001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033025 + 20033026.

It is an arithmetic number, because the mean of its divisors is an integer number (20033026).

Almost surely, 2^40066051 is an apocalyptic number.

40066051 is a deficient number, since it is larger than the sum of its proper divisors (1).

40066051 is an equidigital number, since it uses as much as digits as its factorization.

40066051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 40066051 is about 6329.7749565052. The cubic root of 40066051 is about 342.1833285189.

The spelling of 40066051 in words is "forty million, sixty-six thousand, fifty-one".