53315393 has 2 divisors, whose sum is σ = 53315394. Its totient is φ = 53315392.

The previous prime is 53315389. The next prime is 53315401. The reversal of 53315393 is 39351335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53173264 + 142129 = 7292^2 + 377^2 .

It is a cyclic number.

It is not a de Polignac number, because 53315393 - 2² = 53315389 is a prime.

It is a super-2 number, since 2×53315393² = 5685062261488898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53315363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26657696 + 26657697.

It is an arithmetic number, because the mean of its divisors is an integer number (26657697).

Almost surely, 2^53315393 is an apocalyptic number.

It is an amenable number.

53315393 is a deficient number, since it is larger than the sum of its proper divisors (1).

53315393 is an equidigital number, since it uses as much as digits as its factorization.

53315393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18225, while the sum is 32.

The square root of 53315393 is about 7301.7390394344. The cubic root of 53315393 is about 376.3722005690.

The spelling of 53315393 in words is "fifty-three million, three hundred fifteen thousand, three hundred ninety-three".