67406725 has 12 divisors (see below), whose sum is σ = 85163076. Its totient is φ = 52906880.

The previous prime is 67406723. The next prime is 67406771. The reversal of 67406725 is 52760476.

It can be written as a sum of positive squares in 6 ways, for example, as 19044 + 67387681 = 138^2 + 8209^2 .

It is not a de Polignac number, because 67406725 - 2¹ = 67406723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67406723) 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, 24112 + ... + 26761.

It is an arithmetic number, because the mean of its divisors is an integer number (7096923).

Almost surely, 2^67406725 is an apocalyptic number.

It is an amenable number.

67406725 is a deficient number, since it is larger than the sum of its proper divisors (17756351).

67406725 is a wasteful number, since it uses less digits than its factorization.

67406725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50936 (or 50931 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 67406725 is about 8210.1598644606. The cubic root of 67406725 is about 406.9750098853.

The spelling of 67406725 in words is "sixty-seven million, four hundred six thousand, seven hundred twenty-five".