56471423 has 4 divisors (see below), whose sum is σ = 57030648. Its totient is φ = 55912200.

The previous prime is 56471377. The next prime is 56471431. The reversal of 56471423 is 32417465.

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-56471423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56471423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56471453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279461 + ... + 279662.

It is an arithmetic number, because the mean of its divisors is an integer number (14257662).

Almost surely, 2^56471423 is an apocalyptic number.

56471423 is a deficient number, since it is larger than the sum of its proper divisors (559225).

56471423 is a wasteful number, since it uses less digits than its factorization.

56471423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559224.

The product of its digits is 20160, while the sum is 32.

The square root of 56471423 is about 7514.7470349973. The cubic root of 56471423 is about 383.6568091678.

Adding to 56471423 its reverse (32417465), we get a palindrome (88888888).

The spelling of 56471423 in words is "fifty-six million, four hundred seventy-one thousand, four hundred twenty-three".