50666651 has 4 divisors (see below), whose sum is σ = 57904752. Its totient is φ = 43428552.

The previous prime is 50666641. The next prime is 50666657. The reversal of 50666651 is 15666605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50666651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50666657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3619040 + ... + 3619053.

It is an arithmetic number, because the mean of its divisors is an integer number (14476188).

Almost surely, 2^50666651 is an apocalyptic number.

50666651 is a deficient number, since it is larger than the sum of its proper divisors (7238101).

50666651 is an equidigital number, since it uses as much as digits as its factorization.

50666651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7238100.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 50666651 is about 7118.0510675325. The cubic root of 50666651 is about 370.0332353880.

The spelling of 50666651 in words is "fifty million, six hundred sixty-six thousand, six hundred fifty-one".