56423524099 has 4 divisors (see below), whose sum is σ = 56444202360. Its totient is φ = 56402845840.

The previous prime is 56423524043. The next prime is 56423524121. The reversal of 56423524099 is 99042532465.

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

It is a cyclic number.

It is not a de Polignac number, because 56423524099 - 2¹⁷ = 56423393027 is a prime.

It is a super-2 number, since 2×56423524099² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56423524009) 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, 10335037 + ... + 10340494.

It is an arithmetic number, because the mean of its divisors is an integer number (14111050590).

Almost surely, 2^56423524099 is an apocalyptic number.

56423524099 is a deficient number, since it is larger than the sum of its proper divisors (20678261).

56423524099 is a wasteful number, since it uses less digits than its factorization.

56423524099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20678260.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 56423524099 in words is "fifty-six billion, four hundred twenty-three million, five hundred twenty-four thousand, ninety-nine".