72825081 has 16 divisors (see below), whose sum is σ = 116812800. Its totient is φ = 39423888.

The previous prime is 72825073. The next prime is 72825089. The reversal of 72825081 is 18052827.

It is an interprime number because it is at equal distance from previous prime (72825073) and next prime (72825089).

It is not a de Polignac number, because 72825081 - 2³ = 72825073 is a prime.

It is a super-2 number, since 2×72825081² = 10606984845313122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72825089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90861 + ... + 91658.

It is an arithmetic number, because the mean of its divisors is an integer number (7300800).

Almost surely, 2^72825081 is an apocalyptic number.

It is an amenable number.

72825081 is a deficient number, since it is larger than the sum of its proper divisors (43987719).

72825081 is a wasteful number, since it uses less digits than its factorization.

72825081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182548.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 72825081 is about 8533.7612457814. The cubic root of 72825081 is about 417.5998417796.

The spelling of 72825081 in words is "seventy-two million, eight hundred twenty-five thousand, eighty-one".