67557225 has 12 divisors (see below), whose sum is σ = 111694736. Its totient is φ = 36030480.

The previous prime is 67557223. The next prime is 67557247. The reversal of 67557225 is 52275576.

It is not a de Polignac number, because 67557225 - 2¹ = 67557223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67557221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450307 + ... + 450456.

Almost surely, 2^67557225 is an apocalyptic number.

It is an amenable number.

67557225 is a deficient number, since it is larger than the sum of its proper divisors (44137511).

67557225 is a wasteful number, since it uses less digits than its factorization.

67557225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900776 (or 900771 counting only the distinct ones).

The product of its digits is 147000, while the sum is 39.

The square root of 67557225 is about 8219.3202273667. The cubic root of 67557225 is about 407.2776711359.

The spelling of 67557225 in words is "sixty-seven million, five hundred fifty-seven thousand, two hundred twenty-five".