53123312 has 40 divisors (see below), whose sum is σ = 112693680. Its totient is φ = 24058880.

The previous prime is 53123309. The next prime is 53123327. The reversal of 53123312 is 21332135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89288 + ... + 89880.

It is an arithmetic number, because the mean of its divisors is an integer number (2817342).

Almost surely, 2^53123312 is an apocalyptic number.

It is an amenable number.

53123312 is an abundant number, since it is smaller than the sum of its proper divisors (59570368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53123312 is a wasteful number, since it uses less digits than its factorization.

53123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1115 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 53123312 is about 7288.5740717921. The cubic root of 53123312 is about 375.9196674617.

Adding to 53123312 its reverse (21332135), we get a palindrome (74455447).

It can be divided in two parts, 53123 and 312, that added together give a palindrome (53435).

The spelling of 53123312 in words is "fifty-three million, one hundred twenty-three thousand, three hundred twelve".