56304423 has 16 divisors (see below), whose sum is σ = 95330560. Its totient is φ = 32173848.

The previous prime is 56304421. The next prime is 56304431. The reversal of 56304423 is 32440365.

56304423 is a `hidden beast` number, since 5 + 630 + 4 + 4 + 23 = 666.

It is not a de Polignac number, because 56304423 - 2¹ = 56304421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56304421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148765 + ... + 149142.

It is an arithmetic number, because the mean of its divisors is an integer number (5958160).

Almost surely, 2^56304423 is an apocalyptic number.

56304423 is a deficient number, since it is larger than the sum of its proper divisors (39026137).

56304423 is a wasteful number, since it uses less digits than its factorization.

56304423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297923 (or 297917 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 56304423 is about 7503.6273228353. The cubic root of 56304423 is about 383.2782463164.

Adding to 56304423 its reverse (32440365), we get a palindrome (88744788).

The spelling of 56304423 in words is "fifty-six million, three hundred four thousand, four hundred twenty-three".