67564045 has 4 divisors (see below), whose sum is σ = 81076860. Its totient is φ = 54051232.

The previous prime is 67564043. The next prime is 67564093. The reversal of 67564045 is 54046576.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26770276 + 40793769 = 5174^2 + 6387^2 .

It is a cyclic number.

It is not a de Polignac number, because 67564045 - 2¹ = 67564043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67563995 and 67564013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67564043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6756400 + ... + 6756409.

It is an arithmetic number, because the mean of its divisors is an integer number (20269215).

Almost surely, 2^67564045 is an apocalyptic number.

It is an amenable number.

67564045 is a deficient number, since it is larger than the sum of its proper divisors (13512815).

67564045 is a wasteful number, since it uses less digits than its factorization.

67564045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13512814.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 67564045 is about 8219.7350930550. The cubic root of 67564045 is about 407.2913757655.

It can be divided in two parts, 6756 and 4045, that added together give a palindrome (10801).

The spelling of 67564045 in words is "sixty-seven million, five hundred sixty-four thousand, forty-five".