50209765 has 16 divisors (see below), whose sum is σ = 61549056. Its totient is φ = 39312000.

The previous prime is 50209763. The next prime is 50209807. The reversal of 50209765 is 56790205.

It is not a de Polignac number, because 50209765 - 2¹ = 50209763 is a prime.

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 50209765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50209763) 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, 54660 + ... + 55570.

It is an arithmetic number, because the mean of its divisors is an integer number (3846816).

Almost surely, 2^50209765 is an apocalyptic number.

It is an amenable number.

50209765 is a deficient number, since it is larger than the sum of its proper divisors (11339291).

50209765 is a wasteful number, since it uses less digits than its factorization.

50209765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 50209765 is about 7085.8849129802. The cubic root of 50209765 is about 368.9176183284.

The spelling of 50209765 in words is "fifty million, two hundred nine thousand, seven hundred sixty-five".