67552665 has 16 divisors (see below), whose sum is σ = 108191808. Its totient is φ = 35992256.

The previous prime is 67552651. The next prime is 67552673. The reversal of 67552665 is 56625576.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 67552665 - 2⁶ = 67552601 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21367 + ... + 24323.

It is an arithmetic number, because the mean of its divisors is an integer number (6761988).

Almost surely, 2^67552665 is an apocalyptic number.

It is an amenable number.

67552665 is a deficient number, since it is larger than the sum of its proper divisors (40639143).

67552665 is a wasteful number, since it uses less digits than its factorization.

67552665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its digits is 378000, while the sum is 42.

The square root of 67552665 is about 8219.0428274830. The cubic root of 67552665 is about 407.2685074085.

The spelling of 67552665 in words is "sixty-seven million, five hundred fifty-two thousand, six hundred sixty-five".