72256025 has 12 divisors (see below), whose sum is σ = 91068204. Its totient is φ = 56856000.

The previous prime is 72256021. The next prime is 72256033. The reversal of 72256025 is 52065227.

It can be written as a sum of positive squares in 6 ways, for example, as 3083536 + 69172489 = 1756^2 + 8317^2 .

It is not a de Polignac number, because 72256025 - 2² = 72256021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72256021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22166 + ... + 25215.

It is an arithmetic number, because the mean of its divisors is an integer number (7589017).

Almost surely, 2^72256025 is an apocalyptic number.

It is an amenable number.

72256025 is a deficient number, since it is larger than the sum of its proper divisors (18812179).

72256025 is a wasteful number, since it uses less digits than its factorization.

72256025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47452 (or 47447 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 72256025 is about 8500.3544043763. The cubic root of 72256025 is about 416.5092863407.

The spelling of 72256025 in words is "seventy-two million, two hundred fifty-six thousand, twenty-five".