556105001 has 16 divisors (see below), whose sum is σ = 582266880. Its totient is φ = 530513040.

The previous prime is 556104959. The next prime is 556105027. The reversal of 556105001 is 100501655.

It is a cyclic number.

It is not a de Polignac number, because 556105001 - 2¹⁸ = 555842857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556105051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1190570 + ... + 1191036.

It is an arithmetic number, because the mean of its divisors is an integer number (36391680).

Almost surely, 2^556105001 is an apocalyptic number.

It is an amenable number.

556105001 is a deficient number, since it is larger than the sum of its proper divisors (26161879).

556105001 is a wasteful number, since it uses less digits than its factorization.

556105001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 556105001 is about 23581.8786571384. The cubic root of 556105001 is about 822.3416119473.

Adding to 556105001 its reverse (100501655), we get a palindrome (656606656).

The spelling of 556105001 in words is "five hundred fifty-six million, one hundred five thousand, one".