49650981 has 8 divisors (see below), whose sum is σ = 66454080. Its totient is φ = 32974272.

The previous prime is 49650977. The next prime is 49650989. The reversal of 49650981 is 18905694.

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

It is not a de Polignac number, because 49650981 - 2² = 49650977 is a prime.

It is a super-2 number, since 2×49650981² = 4930439828524722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49650989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30676 + ... + 32253.

It is an arithmetic number, because the mean of its divisors is an integer number (8306760).

Almost surely, 2^49650981 is an apocalyptic number.

49650981 is the 4457-th centered pentagonal number.

It is an amenable number.

49650981 is a deficient number, since it is larger than the sum of its proper divisors (16803099).

49650981 is a wasteful number, since it uses less digits than its factorization.

49650981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63195.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 49650981 is about 7046.3452228797. The cubic root of 49650981 is about 367.5439495775.

The spelling of 49650981 in words is "forty-nine million, six hundred fifty thousand, nine hundred eighty-one".