72750535 has 16 divisors (see below), whose sum is σ = 102564000. Its totient is φ = 48839040.

The previous prime is 72750533. The next prime is 72750569. The reversal of 72750535 is 53505727.

It is not a de Polignac number, because 72750535 - 2¹ = 72750533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72750535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72750533) 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, 50160 + ... + 51589.

It is an arithmetic number, because the mean of its divisors is an integer number (6410250).

Almost surely, 2^72750535 is an apocalyptic number.

72750535 is a deficient number, since it is larger than the sum of its proper divisors (29813465).

72750535 is a wasteful number, since it uses less digits than its factorization.

72750535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101778.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 72750535 is about 8529.3924168138. The cubic root of 72750535 is about 417.4573037720.

The spelling of 72750535 in words is "seventy-two million, seven hundred fifty thousand, five hundred thirty-five".