3056561556001 has 4 divisors (see below), whose sum is σ = 3155160315904. Its totient is φ = 2957962796100.

The previous prime is 3056561555923. The next prime is 3056561556007. The reversal of 3056561556001 is 1006551656503.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-3056561556001 is a prime.

It is a super-2 number, since 2×3056561556001² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3056561556007) 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, 49299379905 + ... + 49299379966.

It is an arithmetic number, because the mean of its divisors is an integer number (788790078976).

Almost surely, 2^{3056561556001} is an apocalyptic number.

3056561556001 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3056561556001 is a deficient number, since it is larger than the sum of its proper divisors (98598759903).

3056561556001 is an equidigital number, since it uses as much as digits as its factorization.

3056561556001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98598759902.

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 3056561556001 in words is "three trillion, fifty-six billion, five hundred sixty-one million, five hundred fifty-six thousand, one".