72853225 has 6 divisors (see below), whose sum is σ = 90338030. Its totient is φ = 58282560.

The previous prime is 72853147. The next prime is 72853229. The reversal of 72853225 is 52235827.

It can be written as a sum of positive squares in 3 ways, for example, as 2108304 + 70744921 = 1452^2 + 8411^2 .

It is not a de Polignac number, because 72853225 - 2¹⁹ = 72328937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72853229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1457040 + ... + 1457089.

Almost surely, 2^72853225 is an apocalyptic number.

It is an amenable number.

72853225 is a deficient number, since it is larger than the sum of its proper divisors (17484805).

72853225 is a wasteful number, since it uses less digits than its factorization.

72853225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914139 (or 2914134 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 72853225 is about 8535.4100663061. The cubic root of 72853225 is about 417.6536300995.

The spelling of 72853225 in words is "seventy-two million, eight hundred fifty-three thousand, two hundred twenty-five".