87066225 has 24 divisors (see below), whose sum is σ = 159945120. Its totient is φ = 46434960.

The previous prime is 87066223. The next prime is 87066263. The reversal of 87066225 is 52266078.

It is not a de Polignac number, because 87066225 - 2¹ = 87066223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87066225.

It is not an unprimeable number, because it can be changed into a prime (87066223) 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 23 ways as a sum of consecutive naturals, for example, 63819 + ... + 65168.

It is an arithmetic number, because the mean of its divisors is an integer number (6664380).

Almost surely, 2^87066225 is an apocalyptic number.

It is an amenable number.

87066225 is a deficient number, since it is larger than the sum of its proper divisors (72878895).

87066225 is a wasteful number, since it uses less digits than its factorization.

87066225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129006 (or 128995 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 87066225 is about 9330.9284103995. The cubic root of 87066225 is about 443.2171651205.

The spelling of 87066225 in words is "eighty-seven million, sixty-six thousand, two hundred twenty-five".