56447711 has 4 divisors (see below), whose sum is σ = 56472624. Its totient is φ = 56422800.

The previous prime is 56447687. The next prime is 56447731. The reversal of 56447711 is 11774465.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56447711 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 (56447731) 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, 8675 + ... + 13716.

It is an arithmetic number, because the mean of its divisors is an integer number (14118156).

Almost surely, 2^56447711 is an apocalyptic number.

56447711 is a deficient number, since it is larger than the sum of its proper divisors (24913).

56447711 is a wasteful number, since it uses less digits than its factorization.

56447711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24912.

The product of its digits is 23520, while the sum is 35.

The square root of 56447711 is about 7513.1691715281. The cubic root of 56447711 is about 383.6031032792.

The spelling of 56447711 in words is "fifty-six million, four hundred forty-seven thousand, seven hundred eleven".