50205157 has 4 divisors (see below), whose sum is σ = 50571756. Its totient is φ = 49838560.

The previous prime is 50205137. The next prime is 50205161. The reversal of 50205157 is 75150205.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32615521 + 17589636 = 5711^2 + 4194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50205157 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 (50205107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183094 + ... + 183367.

It is an arithmetic number, because the mean of its divisors is an integer number (12642939).

Almost surely, 2^50205157 is an apocalyptic number.

It is an amenable number.

50205157 is a deficient number, since it is larger than the sum of its proper divisors (366599).

50205157 is a wasteful number, since it uses less digits than its factorization.

50205157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366598.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 50205157 is about 7085.5597520591. The cubic root of 50205157 is about 368.9063321812.

The spelling of 50205157 in words is "fifty million, two hundred five thousand, one hundred fifty-seven".