50223681 has 6 divisors (see below), whose sum is σ = 72545330. Its totient is φ = 33482448.

The previous prime is 50223673. The next prime is 50223709. The reversal of 50223681 is 18632205.

It can be written as a sum of positive squares in only one way, i.e., 33454656 + 16769025 = 5784^2 + 4095^2 .

It is not a de Polignac number, because 50223681 - 2³ = 50223673 is a prime.

It is a super-2 number, since 2×50223681² = 5044836266379522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50223601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2790196 + ... + 2790213.

Almost surely, 2^50223681 is an apocalyptic number.

It is an amenable number.

50223681 is a deficient number, since it is larger than the sum of its proper divisors (22321649).

50223681 is a wasteful number, since it uses less digits than its factorization.

50223681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580415 (or 5580412 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 50223681 is about 7086.8667971114. The cubic root of 50223681 is about 368.9516979100.

Adding to 50223681 its reverse (18632205), we get a palindrome (68855886).

The spelling of 50223681 in words is "fifty million, two hundred twenty-three thousand, six hundred eighty-one".