51038775 has 48 divisors (see below), whose sum is σ = 94993920. Its totient is φ = 26863200.

The previous prime is 51038773. The next prime is 51038821. The reversal of 51038775 is 57783015.

51038775 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 51038775 - 2¹ = 51038773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51038773) 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 47 ways as a sum of consecutive naturals, for example, 55570 + ... + 56480.

It is an arithmetic number, because the mean of its divisors is an integer number (1979040).

Almost surely, 2^51038775 is an apocalyptic number.

51038775 is a deficient number, since it is larger than the sum of its proper divisors (43955145).

51038775 is a wasteful number, since it uses less digits than its factorization.

51038775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1002 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 51038775 is about 7144.1427057415. The cubic root of 51038775 is about 370.9369363630.

The spelling of 51038775 in words is "fifty-one million, thirty-eight thousand, seven hundred seventy-five".