50065640 has 16 divisors (see below), whose sum is σ = 112647780. Its totient is φ = 20026240.

The previous prime is 50065607. The next prime is 50065643. The reversal of 50065640 is 4656005.

It can be written as a sum of positive squares in 2 ways, for example, as 41550916 + 8514724 = 6446^2 + 2918^2 .

It is not an unprimeable number, because it can be changed into a prime (50065643) 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, 625781 + ... + 625860.

Almost surely, 2^50065640 is an apocalyptic number.

It is an amenable number.

50065640 is an abundant number, since it is smaller than the sum of its proper divisors (62582140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50065640 is a wasteful number, since it uses less digits than its factorization.

50065640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251652 (or 1251648 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 50065640 is about 7075.7077384527. The cubic root of 50065640 is about 368.5642925869.

It can be divided in two parts, 50065 and 640, that added together give a palindrome (50705).

The spelling of 50065640 in words is "fifty million, sixty-five thousand, six hundred forty".