67221125 has 8 divisors (see below), whose sum is σ = 83892120. Its totient is φ = 53776800.

The previous prime is 67221103. The next prime is 67221127. The reversal of 67221125 is 52112276.

It can be written as a sum of positive squares in 4 ways, for example, as 20994724 + 46226401 = 4582^2 + 6799^2 .

It is not a de Polignac number, because 67221125 - 2¹⁴ = 67204741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67221094 and 67221103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67221127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268760 + ... + 269009.

It is an arithmetic number, because the mean of its divisors is an integer number (10486515).

Almost surely, 2^67221125 is an apocalyptic number.

It is an amenable number.

67221125 is a deficient number, since it is larger than the sum of its proper divisors (16670995).

67221125 is an equidigital number, since it uses as much as digits as its factorization.

67221125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537784 (or 537774 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 67221125 is about 8198.8490045859. The cubic root of 67221125 is about 406.6011401932.

The spelling of 67221125 in words is "sixty-seven million, two hundred twenty-one thousand, one hundred twenty-five".