56123501297 has 4 divisors (see below), whose sum is σ = 56321817840. Its totient is φ = 55925184756.

The previous prime is 56123501281. The next prime is 56123501347. The reversal of 56123501297 is 79210532165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56123501297 - 2⁴ = 56123501281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56123500297) 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, 99157847 + ... + 99158412.

It is an arithmetic number, because the mean of its divisors is an integer number (14080454460).

Almost surely, 2^56123501297 is an apocalyptic number.

It is an amenable number.

56123501297 is a deficient number, since it is larger than the sum of its proper divisors (198316543).

56123501297 is a wasteful number, since it uses less digits than its factorization.

56123501297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198316542.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 56123501297 in words is "fifty-six billion, one hundred twenty-three million, five hundred one thousand, two hundred ninety-seven".