53000393 has 2 divisors, whose sum is σ = 53000394. Its totient is φ = 53000392.

The previous prime is 53000383. The next prime is 53000449. The reversal of 53000393 is 39300035.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52606009 + 394384 = 7253^2 + 628^2 .

It is a cyclic number.

It is not a de Polignac number, because 53000393 - 2⁸ = 53000137 is a prime.

It is equal to p_3170075 and since 53000393 and 3170075 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (53000333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26500196 + 26500197.

It is an arithmetic number, because the mean of its divisors is an integer number (26500197).

Almost surely, 2^53000393 is an apocalyptic number.

It is an amenable number.

53000393 is a deficient number, since it is larger than the sum of its proper divisors (1).

53000393 is an equidigital number, since it uses as much as digits as its factorization.

53000393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215, while the sum is 23.

The square root of 53000393 is about 7280.1368805813. The cubic root of 53000393 is about 375.6295038603.

The spelling of 53000393 in words is "fifty-three million, three hundred ninety-three", and thus it is an aban number.