51033765 has 16 divisors (see below), whose sum is σ = 84470400. Its totient is φ = 26279232.

The previous prime is 51033751. The next prime is 51033799. The reversal of 51033765 is 56733015.

51033765 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 51033765 - 2⁶ = 51033701 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 58225 + ... + 59094.

It is an arithmetic number, because the mean of its divisors is an integer number (5279400).

Almost surely, 2^51033765 is an apocalyptic number.

It is an amenable number.

51033765 is a deficient number, since it is larger than the sum of its proper divisors (33436635).

51033765 is a wasteful number, since it uses less digits than its factorization.

51033765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117356.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 51033765 is about 7143.7920602436. The cubic root of 51033765 is about 370.9247988273.

The spelling of 51033765 in words is "fifty-one million, thirty-three thousand, seven hundred sixty-five".