51081152 has 14 divisors (see below), whose sum is σ = 101364288. Its totient is φ = 25540544.

The previous prime is 51081143. The next prime is 51081157. The reversal of 51081152 is 25118015.

51081152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×51081152³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51081157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399008 + ... + 399135.

Almost surely, 2^51081152 is an apocalyptic number.

It is an amenable number.

51081152 is a deficient number, since it is larger than the sum of its proper divisors (50283136).

51081152 is an equidigital number, since it uses as much as digits as its factorization.

51081152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798155 (or 798145 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 51081152 is about 7147.1079465753. The cubic root of 51081152 is about 371.0395697436.

Adding to 51081152 its reverse (25118015), we get a palindrome (76199167).

The spelling of 51081152 in words is "fifty-one million, eighty-one thousand, one hundred fifty-two".