53574397 has 4 divisors (see below), whose sum is σ = 55421820. Its totient is φ = 51726976.

The previous prime is 53574379. The next prime is 53574401. The reversal of 53574397 is 79347535.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79347535 = 5 ⋅15869507.

It can be written as a sum of positive squares in 2 ways, for example, as 22982436 + 30591961 = 4794^2 + 5531^2 .

It is a cyclic number.

It is not a de Polignac number, because 53574397 - 2¹⁵ = 53541629 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 (53574307) 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, 923668 + ... + 923725.

It is an arithmetic number, because the mean of its divisors is an integer number (13855455).

Almost surely, 2^53574397 is an apocalyptic number.

It is an amenable number.

53574397 is a deficient number, since it is larger than the sum of its proper divisors (1847423).

53574397 is a wasteful number, since it uses less digits than its factorization.

53574397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847422.

The product of its digits is 396900, while the sum is 43.

The square root of 53574397 is about 7319.4533265812. The cubic root of 53574397 is about 376.9806832244.

The spelling of 53574397 in words is "fifty-three million, five hundred seventy-four thousand, three hundred ninety-seven".