51069535 has 16 divisors (see below), whose sum is σ = 67612320. Its totient is φ = 36720640.

The previous prime is 51069533. The next prime is 51069541. The reversal of 51069535 is 53596015.

51069535 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 51069535 - 2¹ = 51069533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51069535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51069533) 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 15 ways as a sum of consecutive naturals, for example, 322 + ... + 10111.

It is an arithmetic number, because the mean of its divisors is an integer number (4225770).

Almost surely, 2^51069535 is an apocalyptic number.

51069535 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51069535 is a deficient number, since it is larger than the sum of its proper divisors (16542785).

51069535 is a wasteful number, since it uses less digits than its factorization.

51069535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10538.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 51069535 is about 7146.2951940149. The cubic root of 51069535 is about 371.0114400368.

It can be divided in two parts, 5106 and 9535, that added together give a palindrome (14641).

The spelling of 51069535 in words is "fifty-one million, sixty-nine thousand, five hundred thirty-five".