50780309 has 8 divisors (see below), whose sum is σ = 53831808. Its totient is φ = 47736000.

The previous prime is 50780299. The next prime is 50780311. The reversal of 50780309 is 90308705.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50780309 - 2²⁰ = 49731733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50780329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21434 + ... + 23684.

It is an arithmetic number, because the mean of its divisors is an integer number (6728976).

Almost surely, 2^50780309 is an apocalyptic number.

It is an amenable number.

50780309 is a deficient number, since it is larger than the sum of its proper divisors (3051499).

50780309 is a wasteful number, since it uses less digits than its factorization.

50780309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 50780309 is about 7126.0303816360. The cubic root of 50780309 is about 370.3097211860.

The spelling of 50780309 in words is "fifty million, seven hundred eighty thousand, three hundred nine".