53161393 has 4 divisors (see below), whose sum is σ = 53220160. Its totient is φ = 53102628.

The previous prime is 53161369. The next prime is 53161399. The reversal of 53161393 is 39316135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39316135 = 5 ⋅7863227.

It is a cyclic number.

It is not a de Polignac number, because 53161393 - 2⁹ = 53160881 is a prime.

It is a super-2 number, since 2×53161393² = 5652267411400898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53161399) 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, 28005 + ... + 29842.

It is an arithmetic number, because the mean of its divisors is an integer number (13305040).

Almost surely, 2^53161393 is an apocalyptic number.

It is an amenable number.

53161393 is a deficient number, since it is larger than the sum of its proper divisors (58767).

53161393 is an equidigital number, since it uses as much as digits as its factorization.

53161393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58766.

The product of its digits is 7290, while the sum is 31.

The square root of 53161393 is about 7291.1859803464. The cubic root of 53161393 is about 376.0094709588.

The spelling of 53161393 in words is "fifty-three million, one hundred sixty-one thousand, three hundred ninety-three".