51325632 has 42 divisors (see below), whose sum is σ = 147117308. Its totient is φ = 17108352.

The previous prime is 51325619. The next prime is 51325649. The reversal of 51325632 is 23652315.

51325632 is a `hidden beast` number, since 5 + 1 + 3 + 25 + 632 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51325596 and 51325605.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 43978 + ... + 45129.

Almost surely, 2^51325632 is an apocalyptic number.

It is an amenable number.

51325632 is an abundant number, since it is smaller than the sum of its proper divisors (95791676).

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

51325632 is a wasteful number, since it uses less digits than its factorization.

51325632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89125 (or 89112 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 51325632 is about 7164.1909522290. The cubic root of 51325632 is about 371.6305732432.

Adding to 51325632 its reverse (23652315), we get a palindrome (74977947).

The spelling of 51325632 in words is "fifty-one million, three hundred twenty-five thousand, six hundred thirty-two".