56641967 has 4 divisors (see below), whose sum is σ = 56926800. Its totient is φ = 56357136.

The previous prime is 56641957. The next prime is 56641969. The reversal of 56641967 is 76914665.

It is a happy number.

56641967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76914665 = 5 ⋅15382933.

It is a cyclic number.

It is not a de Polignac number, because 56641967 - 2¹⁶ = 56576431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56641969) 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, 142118 + ... + 142515.

It is an arithmetic number, because the mean of its divisors is an integer number (14231700).

Almost surely, 2^56641967 is an apocalyptic number.

56641967 is a deficient number, since it is larger than the sum of its proper divisors (284833).

56641967 is a wasteful number, since it uses less digits than its factorization.

56641967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284832.

The product of its digits is 272160, while the sum is 44.

The square root of 56641967 is about 7526.0857688443. The cubic root of 56641967 is about 384.0426362344.

The spelling of 56641967 in words is "fifty-six million, six hundred forty-one thousand, nine hundred sixty-seven".