87385225 has 6 divisors (see below), whose sum is σ = 108357710. Its totient is φ = 69908160.

The previous prime is 87385223. The next prime is 87385229. The reversal of 87385225 is 52258378.

It can be written as a sum of positive squares in 3 ways, for example, as 121 + 87385104 = 11^2 + 9348^2 .

It is not a de Polignac number, because 87385225 - 2¹ = 87385223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87385223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1747680 + ... + 1747729.

Almost surely, 2^87385225 is an apocalyptic number.

It is an amenable number.

87385225 is a deficient number, since it is larger than the sum of its proper divisors (20972485).

87385225 is a wasteful number, since it uses less digits than its factorization.

87385225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495419 (or 3495414 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 87385225 is about 9348.0064719704. The cubic root of 87385225 is about 443.7578032087.

The spelling of 87385225 in words is "eighty-seven million, three hundred eighty-five thousand, two hundred twenty-five".