49995666 has 48 divisors (see below), whose sum is σ = 124210944. Its totient is φ = 14236992.

The previous prime is 49995637. The next prime is 49995679. The reversal of 49995666 is 66659994.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57910 + ... + 58766.

It is an arithmetic number, because the mean of its divisors is an integer number (2587728).

Almost surely, 2^49995666 is an apocalyptic number.

49995666 is an abundant number, since it is smaller than the sum of its proper divisors (74215278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49995666 is a wasteful number, since it uses less digits than its factorization.

49995666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1332 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 49995666 is about 7070.7613451452. The cubic root of 49995666 is about 368.3925051615.

The spelling of 49995666 in words is "forty-nine million, nine hundred ninety-five thousand, six hundred sixty-six".