72093253 has 4 divisors (see below), whose sum is σ = 73627200. Its totient is φ = 70559308.

The previous prime is 72093251. The next prime is 72093271. The reversal of 72093253 is 35239027.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35239027 = 1531 ⋅23017.

It is a cyclic number.

It is not a de Polignac number, because 72093253 - 2¹ = 72093251 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 (72093251) 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, 766903 + ... + 766996.

It is an arithmetic number, because the mean of its divisors is an integer number (18406800).

Almost surely, 2^72093253 is an apocalyptic number.

It is an amenable number.

72093253 is a deficient number, since it is larger than the sum of its proper divisors (1533947).

72093253 is a wasteful number, since it uses less digits than its factorization.

72093253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533946.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 72093253 is about 8490.7745818624. The cubic root of 72093253 is about 416.1962927337.

The spelling of 72093253 in words is "seventy-two million, ninety-three thousand, two hundred fifty-three".