50565397 has 4 divisors (see below), whose sum is σ = 50618656. Its totient is φ = 50512140.

The previous prime is 50565391. The next prime is 50565407. The reversal of 50565397 is 79356505.

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 not a de Polignac number, because 50565397 - 2⁷ = 50565269 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 (50565391) 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, 25179 + ... + 27112.

It is an arithmetic number, because the mean of its divisors is an integer number (12654664).

Almost surely, 2^50565397 is an apocalyptic number.

It is an amenable number.

50565397 is a deficient number, since it is larger than the sum of its proper divisors (53259).

50565397 is an equidigital number, since it uses as much as digits as its factorization.

50565397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53258.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 50565397 is about 7110.9350299380. The cubic root of 50565397 is about 369.7865752352.

The spelling of 50565397 in words is "fifty million, five hundred sixty-five thousand, three hundred ninety-seven".