53444197 has 4 divisors (see below), whose sum is σ = 54747756. Its totient is φ = 52140640.

The previous prime is 53444189. The next prime is 53444219. The reversal of 53444197 is 79144435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12047841 + 41396356 = 3471^2 + 6434^2 .

It is a cyclic number.

It is not a de Polignac number, because 53444197 - 2³ = 53444189 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 (53444137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651718 + ... + 651799.

It is an arithmetic number, because the mean of its divisors is an integer number (13686939).

Almost surely, 2^53444197 is an apocalyptic number.

It is an amenable number.

53444197 is a deficient number, since it is larger than the sum of its proper divisors (1303559).

53444197 is a wasteful number, since it uses less digits than its factorization.

53444197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303558.

The product of its digits is 60480, while the sum is 37.

The square root of 53444197 is about 7310.5538093909. The cubic root of 53444197 is about 376.6750478030.

The spelling of 53444197 in words is "fifty-three million, four hundred forty-four thousand, one hundred ninety-seven".