49936221 has 6 divisors (see below), whose sum is σ = 72130110. Its totient is φ = 33290808.

The previous prime is 49936219. The next prime is 49936267. The reversal of 49936221 is 12263994.

It can be written as a sum of positive squares in only one way, i.e., 42068196 + 7868025 = 6486^2 + 2805^2 .

It is not a de Polignac number, because 49936221 - 2¹ = 49936219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49936291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2774226 + ... + 2774243.

It is an arithmetic number, because the mean of its divisors is an integer number (12021685).

Almost surely, 2^49936221 is an apocalyptic number.

It is an amenable number.

49936221 is a deficient number, since it is larger than the sum of its proper divisors (22193889).

49936221 is a wasteful number, since it uses less digits than its factorization.

49936221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5548475 (or 5548472 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 49936221 is about 7066.5565164371. The cubic root of 49936221 is about 368.2464406501.

The spelling of 49936221 in words is "forty-nine million, nine hundred thirty-six thousand, two hundred twenty-one".