52209312 has 48 divisors (see below), whose sum is σ = 145115712. Its totient is φ = 16378880.

The previous prime is 52209299. The next prime is 52209323. The reversal of 52209312 is 21390225.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14364 + ... + 17627.

It is an arithmetic number, because the mean of its divisors is an integer number (3023244).

Almost surely, 2^52209312 is an apocalyptic number.

It is an amenable number.

52209312 is an abundant number, since it is smaller than the sum of its proper divisors (92906400).

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

52209312 is a wasteful number, since it uses less digits than its factorization.

52209312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32021 (or 32013 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 52209312 is about 7225.6011514614. The cubic root of 52209312 is about 373.7512525172.

Adding to 52209312 its reverse (21390225), we get a palindrome (73599537).

The spelling of 52209312 in words is "fifty-two million, two hundred nine thousand, three hundred twelve".