52551312 has 40 divisors (see below), whose sum is σ = 148100640. Its totient is φ = 15924480.

The previous prime is 52551307. The next prime is 52551319. The reversal of 52551312 is 21315525.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (52551319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49237 + ... + 50292.

It is an arithmetic number, because the mean of its divisors is an integer number (3702516).

Almost surely, 2^52551312 is an apocalyptic number.

It is an amenable number.

52551312 is an abundant number, since it is smaller than the sum of its proper divisors (95549328).

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

52551312 is a wasteful number, since it uses less digits than its factorization.

52551312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99551 (or 99545 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 52551312 is about 7249.2283727304. The cubic root of 52551312 is about 374.5655698043.

Adding to 52551312 its reverse (21315525), we get a palindrome (73866837).

It can be divided in two parts, 525513 and 12, that added together give a palindrome (525525).

The spelling of 52551312 in words is "fifty-two million, five hundred fifty-one thousand, three hundred twelve".