72253269 has 32 divisors (see below), whose sum is σ = 118548480. Its totient is φ = 43124400.

The previous prime is 72253261. The next prime is 72253289. The reversal of 72253269 is 96235227.

It is not a de Polignac number, because 72253269 - 2³ = 72253261 is a prime.

It is a super-2 number, since 2×72253269² = 10441069762372722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72253261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18084 + ... + 21714.

It is an arithmetic number, because the mean of its divisors is an integer number (3704640).

Almost surely, 2^72253269 is an apocalyptic number.

It is an amenable number.

72253269 is a deficient number, since it is larger than the sum of its proper divisors (46295211).

72253269 is a wasteful number, since it uses less digits than its factorization.

72253269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718 (or 3712 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 72253269 is about 8500.1922919426. The cubic root of 72253269 is about 416.5039907538.

The spelling of 72253269 in words is "seventy-two million, two hundred fifty-three thousand, two hundred sixty-nine".