53353393 has 2 divisors, whose sum is σ = 53353394. Its totient is φ = 53353392.

The previous prime is 53353381. The next prime is 53353397. The reversal of 53353393 is 39335335.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50367409 + 2985984 = 7097^2 + 1728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53353393 is a prime.

It is a super-2 number, since 2×53353393² = 5693169089224898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53353397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26676696 + 26676697.

It is an arithmetic number, because the mean of its divisors is an integer number (26676697).

Almost surely, 2^53353393 is an apocalyptic number.

It is an amenable number.

53353393 is a deficient number, since it is larger than the sum of its proper divisors (1).

53353393 is an equidigital number, since it uses as much as digits as its factorization.

53353393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54675, while the sum is 34.

The square root of 53353393 is about 7304.3406957781. The cubic root of 53353393 is about 376.4615978097.

The spelling of 53353393 in words is "fifty-three million, three hundred fifty-three thousand, three hundred ninety-three".