50561197 has 4 divisors (see below), whose sum is σ = 50578720. Its totient is φ = 50543676.

The previous prime is 50561191. The next prime is 50561207. The reversal of 50561197 is 79116505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50561197 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 (50561191) 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, 3297 + ... + 10582.

It is an arithmetic number, because the mean of its divisors is an integer number (12644680).

Almost surely, 2^50561197 is an apocalyptic number.

It is an amenable number.

50561197 is a deficient number, since it is larger than the sum of its proper divisors (17523).

50561197 is a wasteful number, since it uses less digits than its factorization.

50561197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 50561197 is about 7110.6397039929. The cubic root of 50561197 is about 369.7763367011.

The spelling of 50561197 in words is "fifty million, five hundred sixty-one thousand, one hundred ninety-seven".