56165506001 has 4 divisors (see below), whose sum is σ = 61271461104. Its totient is φ = 51059550900.

The previous prime is 56165505961. The next prime is 56165506039. The reversal of 56165506001 is 10060556165.

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 56165506001 - 2²² = 56161311697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56165505001) 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, 2552977535 + ... + 2552977556.

It is an arithmetic number, because the mean of its divisors is an integer number (15317865276).

Almost surely, 2^56165506001 is an apocalyptic number.

It is an amenable number.

56165506001 is a deficient number, since it is larger than the sum of its proper divisors (5105955103).

56165506001 is a wasteful number, since it uses less digits than its factorization.

56165506001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105955102.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 56165506001 in words is "fifty-six billion, one hundred sixty-five million, five hundred six thousand, one".