56011010001 has 4 divisors (see below), whose sum is σ = 74681346672. Its totient is φ = 37340673332.

The previous prime is 56011009979. The next prime is 56011010023. The reversal of 56011010001 is 10001011065.

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 an interprime number because it is at equal distance from previous prime (56011009979) and next prime (56011010023).

It is a cyclic number.

It is not a de Polignac number, because 56011010001 - 2¹⁸ = 56010747857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56011010701) 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, 9335168331 + ... + 9335168336.

It is an arithmetic number, because the mean of its divisors is an integer number (18670336668).

Almost surely, 2^56011010001 is an apocalyptic number.

It is an amenable number.

56011010001 is a deficient number, since it is larger than the sum of its proper divisors (18670336671).

56011010001 is a wasteful number, since it uses less digits than its factorization.

56011010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18670336670.

The product of its (nonzero) digits is 30, while the sum is 15.

Adding to 56011010001 its reverse (10001011065), we get a palindrome (66012021066).

The spelling of 56011010001 in words is "fifty-six billion, eleven million, ten thousand, one".