73545253 has 4 divisors (see below), whose sum is σ = 73676448. Its totient is φ = 73414060.

The previous prime is 73545223. The next prime is 73545293. The reversal of 73545253 is 35254537.

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 73545253 - 2²¹ = 71448101 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 (73545223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64753 + ... + 65878.

It is an arithmetic number, because the mean of its divisors is an integer number (18419112).

Almost surely, 2^73545253 is an apocalyptic number.

It is an amenable number.

73545253 is a deficient number, since it is larger than the sum of its proper divisors (131195).

73545253 is a wasteful number, since it uses less digits than its factorization.

73545253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131194.

The product of its digits is 63000, while the sum is 34.

The square root of 73545253 is about 8575.8529021900. The cubic root of 73545253 is about 418.9718863273.

The spelling of 73545253 in words is "seventy-three million, five hundred forty-five thousand, two hundred fifty-three".