56436667 has 4 divisors (see below), whose sum is σ = 64499056. Its totient is φ = 48374280.

The previous prime is 56436661. The next prime is 56436671. The reversal of 56436667 is 76663465.

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 56436667 - 2³ = 56436659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56436661) 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 3 ways as a sum of consecutive naturals, for example, 4031184 + ... + 4031197.

It is an arithmetic number, because the mean of its divisors is an integer number (16124764).

Almost surely, 2^56436667 is an apocalyptic number.

56436667 is a deficient number, since it is larger than the sum of its proper divisors (8062389).

56436667 is an equidigital number, since it uses as much as digits as its factorization.

56436667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8062388.

The product of its digits is 544320, while the sum is 43.

The square root of 56436667 is about 7512.4341594453. The cubic root of 56436667 is about 383.5780843196.

The spelling of 56436667 in words is "fifty-six million, four hundred thirty-six thousand, six hundred sixty-seven".