41664251 has 2 divisors, whose sum is σ = 41664252. Its totient is φ = 41664250.

The previous prime is 41664191. The next prime is 41664289. The reversal of 41664251 is 15246614.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41664251 - 2⁶ = 41664187 is a prime.

It is a super-2 number, since 2×41664251² = 3471819622782002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41664551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20832125 + 20832126.

It is an arithmetic number, because the mean of its divisors is an integer number (20832126).

Almost surely, 2^41664251 is an apocalyptic number.

41664251 is a deficient number, since it is larger than the sum of its proper divisors (1).

41664251 is an equidigital number, since it uses as much as digits as its factorization.

41664251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 41664251 is about 6454.7851242315. The cubic root of 41664251 is about 346.6739373270.

The spelling of 41664251 in words is "forty-one million, six hundred sixty-four thousand, two hundred fifty-one".