53112423 has 24 divisors (see below), whose sum is σ = 88718448. Its totient is φ = 28014336.

The previous prime is 53112407. The next prime is 53112431. The reversal of 53112423 is 32421135.

It is not a de Polignac number, because 53112423 - 2⁴ = 53112407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 53112423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53112463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11986 + ... + 15807.

It is an arithmetic number, because the mean of its divisors is an integer number (3696602).

Almost surely, 2^53112423 is an apocalyptic number.

53112423 is a deficient number, since it is larger than the sum of its proper divisors (35606025).

53112423 is a wasteful number, since it uses less digits than its factorization.

53112423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27823 (or 27816 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 53112423 is about 7287.8270424043. The cubic root of 53112423 is about 375.8939808794.

Adding to 53112423 its reverse (32421135), we get a palindrome (85533558).

It can be divided in two parts, 53112 and 423, that added together give a palindrome (53535).

The spelling of 53112423 in words is "fifty-three million, one hundred twelve thousand, four hundred twenty-three".