50311666 has 4 divisors (see below), whose sum is σ = 75467502. Its totient is φ = 25155832.

The previous prime is 50311661. The next prime is 50311693. The reversal of 50311666 is 66611305.

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

It can be written as a sum of positive squares in only one way, i.e., 31640625 + 18671041 = 5625^2 + 4321^2 .

It is not an unprimeable number, because it can be changed into a prime (50311661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12577915 + ... + 12577918.

Almost surely, 2^50311666 is an apocalyptic number.

50311666 is a deficient number, since it is larger than the sum of its proper divisors (25155836).

50311666 is a wasteful number, since it uses less digits than its factorization.

50311666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25155835.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 50311666 is about 7093.0716900367. The cubic root of 50311666 is about 369.1670231409.

The spelling of 50311666 in words is "fifty million, three hundred eleven thousand, six hundred sixty-six".