51045132 has 24 divisors (see below), whose sum is σ = 119734272. Its totient is φ = 16925200.

The previous prime is 51045131. The next prime is 51045143. The reversal of 51045132 is 23154015.

It is a junction number, because it is equal to n+sod(n) for n = 51045099 and 51045108.

It is not an unprimeable number, because it can be changed into a prime (51045131) 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, 8844 + ... + 13427.

It is an arithmetic number, because the mean of its divisors is an integer number (4988928).

Almost surely, 2^51045132 is an apocalyptic number.

It is an amenable number.

51045132 is an abundant number, since it is smaller than the sum of its proper divisors (68689140).

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

51045132 is a wasteful number, since it uses less digits than its factorization.

51045132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22469 (or 22467 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51045132 is about 7144.5876018144. The cubic root of 51045132 is about 370.9523360809.

Adding to 51045132 its reverse (23154015), we get a palindrome (74199147).

The spelling of 51045132 in words is "fifty-one million, forty-five thousand, one hundred thirty-two".