53148393 has 10 divisors (see below), whose sum is σ = 79394634. Its totient is φ = 35432208.

The previous prime is 53148379. The next prime is 53148401. The reversal of 53148393 is 39384135.

It can be written as a sum of positive squares in only one way, i.e., 47155689 + 5992704 = 6867^2 + 2448^2 .

It is not a de Polignac number, because 53148393 - 2⁹ = 53147881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53148373) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 327996 + ... + 328157.

Almost surely, 2^53148393 is an apocalyptic number.

It is an amenable number.

53148393 is a deficient number, since it is larger than the sum of its proper divisors (26246241).

53148393 is an equidigital number, since it uses as much as digits as its factorization.

53148393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656165 (or 656156 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 53148393 is about 7290.2944384984. The cubic root of 53148393 is about 375.9788188800.

The spelling of 53148393 in words is "fifty-three million, one hundred forty-eight thousand, three hundred ninety-three".