56667605 has 8 divisors (see below), whose sum is σ = 68111064. Its totient is φ = 45260800.

The previous prime is 56667601. The next prime is 56667623. The reversal of 56667605 is 50676665.

It can be written as a sum of positive squares in 4 ways, for example, as 10182481 + 46485124 = 3191^2 + 6818^2 .

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

It is not a de Polignac number, because 56667605 - 2² = 56667601 is a prime.

It is a super-2 number, since 2×56667605² = 6422434912872050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56667601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5636 + ... + 12045.

It is an arithmetic number, because the mean of its divisors is an integer number (8513883).

Almost surely, 2^56667605 is an apocalyptic number.

It is an amenable number.

56667605 is a deficient number, since it is larger than the sum of its proper divisors (11443459).

56667605 is a wasteful number, since it uses less digits than its factorization.

56667605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18327.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 56667605 is about 7527.7888519804. The cubic root of 56667605 is about 384.1005708981.

The spelling of 56667605 in words is "fifty-six million, six hundred sixty-seven thousand, six hundred five".