72085625 has 10 divisors (see below), whose sum is σ = 90078978. Its totient is φ = 57668000.

The previous prime is 72085621. The next prime is 72085631. The reversal of 72085625 is 52658027.

It can be written as a sum of positive squares in 5 ways, for example, as 17147881 + 54937744 = 4141^2 + 7412^2 .

It is not a de Polignac number, because 72085625 - 2² = 72085621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72085621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 57044 + ... + 58293.

Almost surely, 2^72085625 is an apocalyptic number.

It is an amenable number.

72085625 is a deficient number, since it is larger than the sum of its proper divisors (17993353).

72085625 is an equidigital number, since it uses as much as digits as its factorization.

72085625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115357 (or 115342 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 72085625 is about 8490.3253765683. The cubic root of 72085625 is about 416.1816133327.

The spelling of 72085625 in words is "seventy-two million, eighty-five thousand, six hundred twenty-five".