51282752 has 14 divisors (see below), whose sum is σ = 101764338. Its totient is φ = 25641344.

The previous prime is 51282733. The next prime is 51282787. The reversal of 51282752 is 25728215.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51036736 + 246016 = 7144^2 + 496^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400583 + ... + 400710.

Almost surely, 2^51282752 is an apocalyptic number.

It is an amenable number.

51282752 is a deficient number, since it is larger than the sum of its proper divisors (50481586).

51282752 is an equidigital number, since it uses as much as digits as its factorization.

51282752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801305 (or 801295 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 51282752 is about 7161.1976651954. The cubic root of 51282752 is about 371.5270514861.

The spelling of 51282752 in words is "fifty-one million, two hundred eighty-two thousand, seven hundred fifty-two".