56461345 has 4 divisors (see below), whose sum is σ = 67753620. Its totient is φ = 45169072.

The previous prime is 56461337. The next prime is 56461357. The reversal of 56461345 is 54316465.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11785489 + 44675856 = 3433^2 + 6684^2 .

It is a cyclic number.

It is not a de Polignac number, because 56461345 - 2³ = 56461337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56461345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5646130 + ... + 5646139.

It is an arithmetic number, because the mean of its divisors is an integer number (16938405).

Almost surely, 2^56461345 is an apocalyptic number.

It is an amenable number.

56461345 is a deficient number, since it is larger than the sum of its proper divisors (11292275).

56461345 is a wasteful number, since it uses less digits than its factorization.

56461345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11292274.

The product of its digits is 43200, while the sum is 34.

The square root of 56461345 is about 7514.0764568908. The cubic root of 56461345 is about 383.6339850965.

The spelling of 56461345 in words is "fifty-six million, four hundred sixty-one thousand, three hundred forty-five".