53944897 has 2 divisors, whose sum is σ = 53944898. Its totient is φ = 53944896.

The previous prime is 53944879. The next prime is 53944903. The reversal of 53944897 is 79844935.

Together with previous prime (53944879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26998416 + 26946481 = 5196^2 + 5191^2 .

It is a cyclic number.

It is not a de Polignac number, because 53944897 - 2¹⁵ = 53912129 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 53944897.

It is not a weakly prime, because it can be changed into another prime (53944817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26972448 + 26972449.

It is an arithmetic number, because the mean of its divisors is an integer number (26972449).

Almost surely, 2^53944897 is an apocalyptic number.

It is an amenable number.

53944897 is a deficient number, since it is larger than the sum of its proper divisors (1).

53944897 is an equidigital number, since it uses as much as digits as its factorization.

53944897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 53944897 is about 7344.7189871363. The cubic root of 53944897 is about 377.8477056027.

The spelling of 53944897 in words is "fifty-three million, nine hundred forty-four thousand, eight hundred ninety-seven".