67009725 has 36 divisors (see below), whose sum is σ = 120474432. Its totient is φ = 35604000.

The previous prime is 67009673. The next prime is 67009753. The reversal of 67009725 is 52790076.

It is not a de Polignac number, because 67009725 - 2⁶ = 67009661 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 67009725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 96630 + ... + 97320.

It is an arithmetic number, because the mean of its divisors is an integer number (3346512).

Almost surely, 2^67009725 is an apocalyptic number.

It is an amenable number.

67009725 is a deficient number, since it is larger than the sum of its proper divisors (53464707).

67009725 is a wasteful number, since it uses less digits than its factorization.

67009725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 67009725 is about 8185.9467992408. The cubic root of 67009725 is about 406.1744601164.

The spelling of 67009725 in words is "sixty-seven million, nine thousand, seven hundred twenty-five".