53161423 has 6 divisors (see below), whose sum is σ = 61840896. Its totient is φ = 45566892.

The previous prime is 53161421. The next prime is 53161429. The reversal of 53161423 is 32416135.

It is not a de Polignac number, because 53161423 - 2¹ = 53161421 is a prime.

It is a super-2 number, since 2×53161423² = 5652273790769858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53161421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542415 + ... + 542512.

It is an arithmetic number, because the mean of its divisors is an integer number (10306816).

Almost surely, 2^53161423 is an apocalyptic number.

53161423 is a deficient number, since it is larger than the sum of its proper divisors (8679473).

53161423 is a wasteful number, since it uses less digits than its factorization.

53161423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084941 (or 1084934 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 53161423 is about 7291.1880376246. The cubic root of 53161423 is about 376.0095416886.

Adding to 53161423 its reverse (32416135), we get a palindrome (85577558).

The spelling of 53161423 in words is "fifty-three million, one hundred sixty-one thousand, four hundred twenty-three".