67251725 has 12 divisors (see below), whose sum is σ = 86268660. Its totient is φ = 51945600.

The previous prime is 67251721. The next prime is 67251731. The reversal of 67251725 is 52715276.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6240004 + 61011721 = 2498^2 + 7811^2 .

It is not a de Polignac number, because 67251725 - 2² = 67251721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67251721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45656 + ... + 47105.

It is an arithmetic number, because the mean of its divisors is an integer number (7189055).

Almost surely, 2^67251725 is an apocalyptic number.

It is an amenable number.

67251725 is a deficient number, since it is larger than the sum of its proper divisors (19016935).

67251725 is a wasteful number, since it uses less digits than its factorization.

67251725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92800 (or 92795 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 67251725 is about 8200.7149078602. The cubic root of 67251725 is about 406.6628276833.

It can be divided in two parts, 67251 and 725, that added together give a palindrome (67976).

The spelling of 67251725 in words is "sixty-seven million, two hundred fifty-one thousand, seven hundred twenty-five".