51812152 has 16 divisors (see below), whose sum is σ = 111026160. Its totient is φ = 22205184.

The previous prime is 51812149. The next prime is 51812153. The reversal of 51812152 is 25121815.

51812152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51812152² = 5368998189742208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51812153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462553 + ... + 462664.

It is an arithmetic number, because the mean of its divisors is an integer number (6939135).

Almost surely, 2^51812152 is an apocalyptic number.

It is an amenable number.

51812152 is an abundant number, since it is smaller than the sum of its proper divisors (59214008).

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

51812152 is a wasteful number, since it uses less digits than its factorization.

51812152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925230 (or 925226 counting only the distinct ones).

The product of its digits is 800, while the sum is 25.

The square root of 51812152 is about 7198.0658513242. The cubic root of 51812152 is about 372.8011216173.

Adding to 51812152 its reverse (25121815), we get a palindrome (76933967).

The spelling of 51812152 in words is "fifty-one million, eight hundred twelve thousand, one hundred fifty-two".