50640303 has 16 divisors (see below), whose sum is σ = 77447936. Its totient is φ = 28831680.

The previous prime is 50640299. The next prime is 50640307. The reversal of 50640303 is 30304605.

It is an interprime number because it is at equal distance from previous prime (50640299) and next prime (50640307).

It is not a de Polignac number, because 50640303 - 2² = 50640299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50640303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50640307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683 + ... + 10203.

It is an arithmetic number, because the mean of its divisors is an integer number (4840496).

Almost surely, 2^50640303 is an apocalyptic number.

50640303 is a deficient number, since it is larger than the sum of its proper divisors (26807633).

50640303 is a wasteful number, since it uses less digits than its factorization.

50640303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8814.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 50640303 is about 7116.2000393468. The cubic root of 50640303 is about 369.9690819064.

Adding to 50640303 its reverse (30304605), we get a palindrome (80944908).

The spelling of 50640303 in words is "fifty million, six hundred forty thousand, three hundred three".