51125132 has 12 divisors (see below), whose sum is σ = 89520816. Its totient is φ = 25547760.

The previous prime is 51125131. The next prime is 51125149. The reversal of 51125132 is 23152115.

It is a happy number.

It is a super-2 number, since 2×51125132² = 5227558244034848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51125131) 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 3 ways as a sum of consecutive naturals, for example, 8633 + ... + 13295.

It is an arithmetic number, because the mean of its divisors is an integer number (7460068).

Almost surely, 2^51125132 is an apocalyptic number.

It is an amenable number.

51125132 is a deficient number, since it is larger than the sum of its proper divisors (38395684).

51125132 is a wasteful number, since it uses less digits than its factorization.

51125132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7408 (or 7406 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 51125132 is about 7150.1840535751. The cubic root of 51125132 is about 371.1460254428.

Adding to 51125132 its reverse (23152115), we get a palindrome (74277247).

The spelling of 51125132 in words is "fifty-one million, one hundred twenty-five thousand, one hundred thirty-two".