51782732 has 12 divisors (see below), whose sum is σ = 91220976. Its totient is φ = 25719600.

The previous prime is 51782701. The next prime is 51782737. The reversal of 51782732 is 23728715.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51782692 and 51782701.

It is not an unprimeable number, because it can be changed into a prime (51782737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42263 + ... + 43470.

It is an arithmetic number, because the mean of its divisors is an integer number (7601748).

Almost surely, 2^51782732 is an apocalyptic number.

It is an amenable number.

51782732 is a deficient number, since it is larger than the sum of its proper divisors (39438244).

51782732 is a wasteful number, since it uses less digits than its factorization.

51782732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85888 (or 85886 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 51782732 is about 7196.0219566091. The cubic root of 51782732 is about 372.7305468896.

The spelling of 51782732 in words is "fifty-one million, seven hundred eighty-two thousand, seven hundred thirty-two".