50621897 has 2 divisors, whose sum is σ = 50621898. Its totient is φ = 50621896.

The previous prime is 50621881. The next prime is 50621939. The reversal of 50621897 is 79812605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48706441 + 1915456 = 6979^2 + 1384^2 .

It is a cyclic number.

It is not a de Polignac number, because 50621897 - 2⁴ = 50621881 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50621897.

It is not a weakly prime, because it can be changed into another prime (50621297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25310948 + 25310949.

It is an arithmetic number, because the mean of its divisors is an integer number (25310949).

Almost surely, 2^50621897 is an apocalyptic number.

It is an amenable number.

50621897 is a deficient number, since it is larger than the sum of its proper divisors (1).

50621897 is an equidigital number, since it uses as much as digits as its factorization.

50621897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 50621897 is about 7114.9066754245. The cubic root of 50621897 is about 369.9242528163.

The spelling of 50621897 in words is "fifty million, six hundred twenty-one thousand, eight hundred ninety-seven".