87225012 has 60 divisors (see below), whose sum is σ = 260604960. Its totient is φ = 24920784.

The previous prime is 87225007. The next prime is 87225013. The reversal of 87225012 is 21052278.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87225013) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16962 + ... + 21497.

It is an arithmetic number, because the mean of its divisors is an integer number (4343416).

Almost surely, 2^87225012 is an apocalyptic number.

It is an amenable number.

87225012 is an abundant number, since it is smaller than the sum of its proper divisors (173379948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87225012 is a wasteful number, since it uses less digits than its factorization.

87225012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38482 (or 38471 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 87225012 is about 9339.4331733784. The cubic root of 87225012 is about 443.4864405442.

The spelling of 87225012 in words is "eighty-seven million, two hundred twenty-five thousand, twelve".