72529753 has 4 divisors (see below), whose sum is σ = 72788148. Its totient is φ = 72271360.

The previous prime is 72529747. The next prime is 72529763. The reversal of 72529753 is 35792527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35792527 = 59 ⋅606653.

It can be written as a sum of positive squares in 2 ways, for example, as 65496649 + 7033104 = 8093^2 + 2652^2 .

It is a cyclic number.

It is not a de Polignac number, because 72529753 - 2⁹ = 72529241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72529763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128776 + ... + 129337.

It is an arithmetic number, because the mean of its divisors is an integer number (18197037).

Almost surely, 2^72529753 is an apocalyptic number.

It is an amenable number.

72529753 is a deficient number, since it is larger than the sum of its proper divisors (258395).

72529753 is a wasteful number, since it uses less digits than its factorization.

72529753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258394.

The product of its digits is 132300, while the sum is 40.

The square root of 72529753 is about 8516.4401600669. The cubic root of 72529753 is about 417.0345785801.

The spelling of 72529753 in words is "seventy-two million, five hundred twenty-nine thousand, seven hundred fifty-three".