67551225 has 24 divisors (see below), whose sum is σ = 127640640. Its totient is φ = 30880320.

The previous prime is 67551221. The next prime is 67551227. The reversal of 67551225 is 52215576.

It is not a de Polignac number, because 67551225 - 2² = 67551221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67551221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63810 + ... + 64859.

It is an arithmetic number, because the mean of its divisors is an integer number (5318360).

Almost surely, 2^67551225 is an apocalyptic number.

It is an amenable number.

67551225 is a deficient number, since it is larger than the sum of its proper divisors (60089415).

67551225 is a wasteful number, since it uses less digits than its factorization.

67551225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128689 (or 128684 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 67551225 is about 8218.9552255746. The cubic root of 67551225 is about 407.2656135142.

It can be divided in two parts, 67551 and 225, that added together give a palindrome (67776).

The spelling of 67551225 in words is "sixty-seven million, five hundred fifty-one thousand, two hundred twenty-five".