72553975 has 12 divisors (see below), whose sum is σ = 96887896. Its totient is φ = 53578080.

The previous prime is 72553973. The next prime is 72553991. The reversal of 72553975 is 57935527.

It is not a de Polignac number, because 72553975 - 2¹ = 72553973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72553973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111297 + ... + 111946.

Almost surely, 2^72553975 is an apocalyptic number.

72553975 is a deficient number, since it is larger than the sum of its proper divisors (24333921).

72553975 is a wasteful number, since it uses less digits than its factorization.

72553975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223266 (or 223261 counting only the distinct ones).

The product of its digits is 330750, while the sum is 43.

The square root of 72553975 is about 8517.8621144041. The cubic root of 72553975 is about 417.0809976329.

The spelling of 72553975 in words is "seventy-two million, five hundred fifty-three thousand, nine hundred seventy-five".