51085755 has 32 divisors (see below), whose sum is σ = 103795200. Its totient is φ = 23353056.

The previous prime is 51085751. The next prime is 51085781. The reversal of 51085755 is 55758015.

51085755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51085755 - 2² = 51085751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51085751) 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 in 31 ways as a sum of consecutive naturals, for example, 26085 + ... + 27974.

It is an arithmetic number, because the mean of its divisors is an integer number (3243600).

Almost surely, 2^51085755 is an apocalyptic number.

51085755 is an abundant number, since it is smaller than the sum of its proper divisors (52709445).

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

51085755 is a wasteful number, since it uses less digits than its factorization.

51085755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54080 (or 54074 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The square root of 51085755 is about 7147.4299576841. The cubic root of 51085755 is about 371.0507143881.

The spelling of 51085755 in words is "fifty-one million, eighty-five thousand, seven hundred fifty-five".