51776512 has 44 divisors (see below), whose sum is σ = 105379560. Its totient is φ = 25419776.

The previous prime is 51776507. The next prime is 51776533. The reversal of 51776512 is 21567715.

It is a happy number.

It is a super-2 number, since 2×51776512² = 5361614389772288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59988 + ... + 60844.

It is an arithmetic number, because the mean of its divisors is an integer number (2394990).

Almost surely, 2^51776512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51776512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52689780).

51776512 is an abundant number, since it is smaller than the sum of its proper divisors (53603048).

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

51776512 is an equidigital number, since it uses as much as digits as its factorization.

51776512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 918 counting only the distinct ones).

The product of its digits is 14700, while the sum is 34.

The square root of 51776512 is about 7195.5897604019. The cubic root of 51776512 is about 372.7156225010.

The spelling of 51776512 in words is "fifty-one million, seven hundred seventy-six thousand, five hundred twelve".