53437393 has 2 divisors, whose sum is σ = 53437394. Its totient is φ = 53437392.

The previous prime is 53437357. The next prime is 53437399. The reversal of 53437393 is 39373435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35856144 + 17581249 = 5988^2 + 4193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53437393 is a prime.

It is not a weakly prime, because it can be changed into another prime (53437399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26718696 + 26718697.

It is an arithmetic number, because the mean of its divisors is an integer number (26718697).

Almost surely, 2^53437393 is an apocalyptic number.

It is an amenable number.

53437393 is a deficient number, since it is larger than the sum of its proper divisors (1).

53437393 is an equidigital number, since it uses as much as digits as its factorization.

53437393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 37.

The square root of 53437393 is about 7310.0884399575. The cubic root of 53437393 is about 376.6590622459.

The spelling of 53437393 in words is "fifty-three million, four hundred thirty-seven thousand, three hundred ninety-three".