52156212 has 24 divisors (see below), whose sum is σ = 121951200. Its totient is φ = 17349216.

The previous prime is 52156211. The next prime is 52156241. The reversal of 52156212 is 21265125.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52156211) 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, 1839 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (5081300).

Almost surely, 2^52156212 is an apocalyptic number.

It is an amenable number.

52156212 is an abundant number, since it is smaller than the sum of its proper divisors (69794988).

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

52156212 is a wasteful number, since it uses less digits than its factorization.

52156212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9055 (or 9053 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 52156212 is about 7221.9257819504. The cubic root of 52156212 is about 373.6245003932.

The spelling of 52156212 in words is "fifty-two million, one hundred fifty-six thousand, two hundred twelve".