56686567 has 8 divisors (see below), whose sum is σ = 65390976. Its totient is φ = 48133752.

The previous prime is 56686549. The next prime is 56686571. The reversal of 56686567 is 76568665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56686567 - 2¹¹ = 56684519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56686567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56686537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37093 + ... + 38590.

It is an arithmetic number, because the mean of its divisors is an integer number (8173872).

Almost surely, 2^56686567 is an apocalyptic number.

56686567 is a deficient number, since it is larger than the sum of its proper divisors (8704409).

56686567 is a wasteful number, since it uses less digits than its factorization.

56686567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75797.

The product of its digits is 1814400, while the sum is 49.

The square root of 56686567 is about 7529.0482134198. The cubic root of 56686567 is about 384.1434084406.

The spelling of 56686567 in words is "fifty-six million, six hundred eighty-six thousand, five hundred sixty-seven".