49661806 has 4 divisors (see below), whose sum is σ = 74492712. Its totient is φ = 24830902.

The previous prime is 49661791. The next prime is 49661837. The reversal of 49661806 is 60816694.

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

It is a congruent 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 as a sum of consecutive naturals, namely, 12415450 + ... + 12415453.

It is an arithmetic number, because the mean of its divisors is an integer number (18623178).

Almost surely, 2^49661806 is an apocalyptic number.

49661806 is a deficient number, since it is larger than the sum of its proper divisors (24830906).

49661806 is a wasteful number, since it uses less digits than its factorization.

49661806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24830905.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 49661806 is about 7047.1133097177. The cubic root of 49661806 is about 367.5706585103.

The spelling of 49661806 in words is "forty-nine million, six hundred sixty-one thousand, eight hundred six".