49636666 has 8 divisors (see below), whose sum is σ = 74780820. Its totient is φ = 24709728.

The previous prime is 49636633. The next prime is 49636667. The reversal of 49636666 is 66663694.

It can be written as a sum of positive squares in 2 ways, for example, as 49294441 + 342225 = 7021^2 + 585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×49636666² = 4927597223191112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49636667) 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, 53731 + ... + 54646.

Almost surely, 2^49636666 is an apocalyptic number.

49636666 is a deficient number, since it is larger than the sum of its proper divisors (25144154).

49636666 is a wasteful number, since it uses less digits than its factorization.

49636666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108608.

The product of its digits is 839808, while the sum is 46.

The square root of 49636666 is about 7045.3293748412. The cubic root of 49636666 is about 367.5086236735.

The spelling of 49636666 in words is "forty-nine million, six hundred thirty-six thousand, six hundred sixty-six".