67532545 has 4 divisors (see below), whose sum is σ = 81039060. Its totient is φ = 54026032.

The previous prime is 67532537. The next prime is 67532579. The reversal of 67532545 is 54523576.

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 25230529 + 42302016 = 5023^2 + 6504^2 .

It is a cyclic number.

It is not a de Polignac number, because 67532545 - 2³ = 67532537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6753250 + ... + 6753259.

It is an arithmetic number, because the mean of its divisors is an integer number (20259765).

Almost surely, 2^67532545 is an apocalyptic number.

It is an amenable number.

67532545 is a deficient number, since it is larger than the sum of its proper divisors (13506515).

67532545 is a wasteful number, since it uses less digits than its factorization.

67532545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13506514.

The product of its digits is 126000, while the sum is 37.

The square root of 67532545 is about 8217.8187495223. The cubic root of 67532545 is about 407.2280695465.

The spelling of 67532545 in words is "sixty-seven million, five hundred thirty-two thousand, five hundred forty-five".