68572225 has 6 divisors (see below), whose sum is σ = 85029590. Its totient is φ = 54857760.

The previous prime is 68572187. The next prime is 68572241. The reversal of 68572225 is 52227586.

It can be written as a sum of positive squares in 3 ways, for example, as 17363889 + 51208336 = 4167^2 + 7156^2 .

It is not a de Polignac number, because 68572225 - 2²⁵ = 35017793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1371420 + ... + 1371469.

Almost surely, 2^68572225 is an apocalyptic number.

It is an amenable number.

68572225 is a deficient number, since it is larger than the sum of its proper divisors (16457365).

68572225 is a wasteful number, since it uses less digits than its factorization.

68572225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742899 (or 2742894 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 68572225 is about 8280.8348009123. The cubic root of 68572225 is about 409.3072278696.

The spelling of 68572225 in words is "sixty-eight million, five hundred seventy-two thousand, two hundred twenty-five".