72855753 has 4 divisors (see below), whose sum is σ = 97141008. Its totient is φ = 48570500.

The previous prime is 72855749. The next prime is 72855767. The reversal of 72855753 is 35755827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72855753 - 2² = 72855749 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72855703) 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 3 ways as a sum of consecutive naturals, for example, 12142623 + ... + 12142628.

It is an arithmetic number, because the mean of its divisors is an integer number (24285252).

Almost surely, 2^72855753 is an apocalyptic number.

It is an amenable number.

72855753 is a deficient number, since it is larger than the sum of its proper divisors (24285255).

72855753 is a wasteful number, since it uses less digits than its factorization.

72855753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24285254.

The product of its digits is 294000, while the sum is 42.

The square root of 72855753 is about 8535.5581539815. The cubic root of 72855753 is about 417.6584608908.

The spelling of 72855753 in words is "seventy-two million, eight hundred fifty-five thousand, seven hundred fifty-three".