50906909 has 8 divisors (see below), whose sum is σ = 53676000. Its totient is φ = 48146832.

The previous prime is 50906903. The next prime is 50906923. The reversal of 50906909 is 90960905.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50906909 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 (50906903) 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, 11582 + ... + 15360.

It is an arithmetic number, because the mean of its divisors is an integer number (6709500).

Almost surely, 2^50906909 is an apocalyptic number.

It is an amenable number.

50906909 is a deficient number, since it is larger than the sum of its proper divisors (2769091).

50906909 is a wasteful number, since it uses less digits than its factorization.

50906909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4507.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 50906909 is about 7134.9077779604. The cubic root of 50906909 is about 370.6172045771.

It can be divided in two parts, 50906 and 909, that added together give a palindrome (51815).

The spelling of 50906909 in words is "fifty million, nine hundred six thousand, nine hundred nine".