52213432 has 32 divisors (see below), whose sum is σ = 99655920. Its totient is φ = 25643520.

The previous prime is 52213429. The next prime is 52213439. The reversal of 52213432 is 23431225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52213439) 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, 154768 + ... + 155104.

Almost surely, 2^52213432 is an apocalyptic number.

It is an amenable number.

52213432 is a deficient number, since it is larger than the sum of its proper divisors (47442488).

52213432 is a wasteful number, since it uses less digits than its factorization.

52213432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 627 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 52213432 is about 7225.8862432230. The cubic root of 52213432 is about 373.7610835518.

Adding to 52213432 its reverse (23431225), we get a palindrome (75644657).

The spelling of 52213432 in words is "fifty-two million, two hundred thirteen thousand, four hundred thirty-two".