56630023 has 4 divisors (see below), whose sum is σ = 57698568. Its totient is φ = 55561480.

The previous prime is 56630003. The next prime is 56630033. The reversal of 56630023 is 32003665.

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-56630023 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 56630023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56630003) by changing a digit.

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, 534193 + ... + 534298.

It is an arithmetic number, because the mean of its divisors is an integer number (14424642).

Almost surely, 2^56630023 is an apocalyptic number.

56630023 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

56630023 is a deficient number, since it is larger than the sum of its proper divisors (1068545).

56630023 is a wasteful number, since it uses less digits than its factorization.

56630023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068544.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 56630023 is about 7525.2922202397. The cubic root of 56630023 is about 384.0156401869.

Adding to 56630023 its reverse (32003665), we get a palindrome (88633688).

The spelling of 56630023 in words is "fifty-six million, six hundred thirty thousand, twenty-three".