53108393 has 4 divisors (see below), whose sum is σ = 57193668. Its totient is φ = 49023120.

The previous prime is 53108387. The next prime is 53108399. The reversal of 53108393 is 39380135.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (53108387) and next prime (53108399).

It can be written as a sum of positive squares in 2 ways, for example, as 5938969 + 47169424 = 2437^2 + 6868^2 .

It is a cyclic number.

It is not a de Polignac number, because 53108393 - 2⁶ = 53108329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53108399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042618 + ... + 2042643.

It is an arithmetic number, because the mean of its divisors is an integer number (14298417).

Almost surely, 2^53108393 is an apocalyptic number.

It is an amenable number.

53108393 is a deficient number, since it is larger than the sum of its proper divisors (4085275).

53108393 is a wasteful number, since it uses less digits than its factorization.

53108393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085274.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 53108393 is about 7287.5505487098. The cubic root of 53108393 is about 375.8844734298.

The spelling of 53108393 in words is "fifty-three million, one hundred eight thousand, three hundred ninety-three".