67725563 has 4 divisors (see below), whose sum is σ = 69377448. Its totient is φ = 66073680.

The previous prime is 67725523. The next prime is 67725583. The reversal of 67725563 is 36552776.

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

It is a cyclic number.

It is not a de Polignac number, because 67725563 - 2¹⁰ = 67724539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1651843 = 67725563 / (6 + 7 + 7 + 2 + 5 + 5 + 6 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67725563.

It is not an unprimeable number, because it can be changed into a prime (67725523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825881 + ... + 825962.

It is an arithmetic number, because the mean of its divisors is an integer number (17344362).

Almost surely, 2^67725563 is an apocalyptic number.

67725563 is a deficient number, since it is larger than the sum of its proper divisors (1651885).

67725563 is a wasteful number, since it uses less digits than its factorization.

67725563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651884.

The product of its digits is 264600, while the sum is 41.

The square root of 67725563 is about 8229.5542406621. The cubic root of 67725563 is about 407.6156731851.

The spelling of 67725563 in words is "sixty-seven million, seven hundred twenty-five thousand, five hundred sixty-three".