72275453 has 8 divisors (see below), whose sum is σ = 78019200. Its totient is φ = 66748528.

The previous prime is 72275443. The next prime is 72275459. The reversal of 72275453 is 35457227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72275453 - 2⁸ = 72275197 is a prime.

It is a super-2 number, since 2×72275453² = 10447482212710418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72275459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53513 + ... + 54846.

It is an arithmetic number, because the mean of its divisors is an integer number (9752400).

Almost surely, 2^72275453 is an apocalyptic number.

It is an amenable number.

72275453 is a deficient number, since it is larger than the sum of its proper divisors (5743747).

72275453 is a wasteful number, since it uses less digits than its factorization.

72275453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108411.

The product of its digits is 58800, while the sum is 35.

The square root of 72275453 is about 8501.4971034518. The cubic root of 72275453 is about 416.5466129502.

The spelling of 72275453 in words is "seventy-two million, two hundred seventy-five thousand, four hundred fifty-three".