66050407 has 2 divisors, whose sum is σ = 66050408. Its totient is φ = 66050406.

The previous prime is 66050401. The next prime is 66050431. The reversal of 66050407 is 70405066.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66050407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66050401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33025203 + 33025204.

It is an arithmetic number, because the mean of its divisors is an integer number (33025204).

Almost surely, 2^66050407 is an apocalyptic number.

66050407 is a deficient number, since it is larger than the sum of its proper divisors (1).

66050407 is an equidigital number, since it uses as much as digits as its factorization.

66050407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 66050407 is about 8127.1401489085. The cubic root of 66050407 is about 404.2268580965.

The spelling of 66050407 in words is "sixty-six million, fifty thousand, four hundred seven".