51474197 has 2 divisors, whose sum is σ = 51474198. Its totient is φ = 51474196.

The previous prime is 51474151. The next prime is 51474209. The reversal of 51474197 is 79147415.

51474197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51466276 + 7921 = 7174^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 51474197 - 2⁶ = 51474133 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 51474197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51474697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25737098 + 25737099.

It is an arithmetic number, because the mean of its divisors is an integer number (25737099).

Almost surely, 2^51474197 is an apocalyptic number.

It is an amenable number.

51474197 is a deficient number, since it is larger than the sum of its proper divisors (1).

51474197 is an equidigital number, since it uses as much as digits as its factorization.

51474197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 51474197 is about 7174.5520417654. The cubic root of 51474197 is about 371.9887965370.

The spelling of 51474197 in words is "fifty-one million, four hundred seventy-four thousand, one hundred ninety-seven".