52512212 has 24 divisors (see below), whose sum is σ = 93082752. Its totient is φ = 25920000.

The previous prime is 52512179. The next prime is 52512217. The reversal of 52512212 is 21221525.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52512217) by changing a digit.

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, 193637 + ... + 193907.

It is an arithmetic number, because the mean of its divisors is an integer number (3878448).

Almost surely, 2^52512212 is an apocalyptic number.

It is an amenable number.

52512212 is a deficient number, since it is larger than the sum of its proper divisors (40570540).

52512212 is a wasteful number, since it uses less digits than its factorization.

52512212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 717 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 52512212 is about 7246.5310321560. The cubic root of 52512212 is about 374.4726501608.

Adding to 52512212 its reverse (21221525), we get a palindrome (73733737).

The spelling of 52512212 in words is "fifty-two million, five hundred twelve thousand, two hundred twelve".