53373389 has 4 divisors (see below), whose sum is σ = 53973180. Its totient is φ = 52773600.

The previous prime is 53373379. The next prime is 53373391. The reversal of 53373389 is 98337335.

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 36808489 + 16564900 = 6067^2 + 4070^2 .

It is a cyclic number.

It is not a de Polignac number, because 53373389 - 2¹² = 53369293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53373329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299762 + ... + 299939.

It is an arithmetic number, because the mean of its divisors is an integer number (13493295).

Almost surely, 2^53373389 is an apocalyptic number.

It is an amenable number.

53373389 is a deficient number, since it is larger than the sum of its proper divisors (599791).

53373389 is an equidigital number, since it uses as much as digits as its factorization.

53373389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599790.

The product of its digits is 204120, while the sum is 41.

The square root of 53373389 is about 7305.7093426990. The cubic root of 53373389 is about 376.5086225346.

The spelling of 53373389 in words is "fifty-three million, three hundred seventy-three thousand, three hundred eighty-nine".