50436139 has 8 divisors (see below), whose sum is σ = 54714240. Its totient is φ = 46214976.

The previous prime is 50436107. The next prime is 50436151. The reversal of 50436139 is 93163405.

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

It is a cyclic number.

It is not a de Polignac number, because 50436139 - 2⁵ = 50436107 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 50436139.

It is not an unprimeable number, because it can be changed into a prime (50433139) 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, 12379 + ... + 15940.

It is an arithmetic number, because the mean of its divisors is an integer number (6839280).

Almost surely, 2^50436139 is an apocalyptic number.

50436139 is a deficient number, since it is larger than the sum of its proper divisors (4278101).

50436139 is a wasteful number, since it uses less digits than its factorization.

50436139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28469.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 50436139 is about 7101.8405360864. The cubic root of 50436139 is about 369.4712168956.

The spelling of 50436139 in words is "fifty million, four hundred thirty-six thousand, one hundred thirty-nine".