53193409 has 2 divisors, whose sum is σ = 53193410. Its totient is φ = 53193408.

The previous prime is 53193379. The next prime is 53193419. The reversal of 53193409 is 90439135.

53193409 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., 52707600 + 485809 = 7260^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 53193409 - 2¹⁷ = 53062337 is a prime.

It is a super-2 number, since 2×53193409² = 5659077522082562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53193419) 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, 26596704 + 26596705.

It is an arithmetic number, because the mean of its divisors is an integer number (26596705).

Almost surely, 2^53193409 is an apocalyptic number.

It is an amenable number.

53193409 is a deficient number, since it is larger than the sum of its proper divisors (1).

53193409 is an equidigital number, since it uses as much as digits as its factorization.

53193409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 53193409 is about 7293.3811774787. The cubic root of 53193409 is about 376.0849386538.

The spelling of 53193409 in words is "fifty-three million, one hundred ninety-three thousand, four hundred nine".