72265285 has 8 divisors (see below), whose sum is σ = 86773536. Its totient is φ = 57775440.

The previous prime is 72265279. The next prime is 72265357. The reversal of 72265285 is 58256227.

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

It is not a de Polignac number, because 72265285 - 2⁵ = 72265253 is a prime.

It is a super-2 number, since 2×72265285² = 10444542832262450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6462 + ... + 13648.

It is an arithmetic number, because the mean of its divisors is an integer number (10846692).

Almost surely, 2^72265285 is an apocalyptic number.

It is an amenable number.

72265285 is a deficient number, since it is larger than the sum of its proper divisors (14508251).

72265285 is a wasteful number, since it uses less digits than its factorization.

72265285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9203.

The product of its digits is 67200, while the sum is 37.

The square root of 72265285 is about 8500.8990700984. The cubic root of 72265285 is about 416.5270782192.

The spelling of 72265285 in words is "seventy-two million, two hundred sixty-five thousand, two hundred eighty-five".