51858132 has 24 divisors (see below), whose sum is σ = 121128000. Its totient is φ = 17268096.

The previous prime is 51858047. The next prime is 51858161. The reversal of 51858132 is 23185815.

It is a happy number.

51858132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51858093 and 51858102.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15244 + ... + 18332.

It is an arithmetic number, because the mean of its divisors is an integer number (5047000).

Almost surely, 2^51858132 is an apocalyptic number.

It is an amenable number.

51858132 is an abundant number, since it is smaller than the sum of its proper divisors (69269868).

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

51858132 is a wasteful number, since it uses less digits than its factorization.

51858132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495 (or 4493 counting only the distinct ones).

The product of its digits is 9600, while the sum is 33.

The square root of 51858132 is about 7201.2590565817. The cubic root of 51858132 is about 372.9113681314.

It can be divided in two parts, 5185813 and 2, that added together give a palindrome (5185815).

The spelling of 51858132 in words is "fifty-one million, eight hundred fifty-eight thousand, one hundred thirty-two".