105555001 has 4 divisors (see below), whose sum is σ = 106826832. Its totient is φ = 104283172.

The previous prime is 105554987. The next prime is 105555011. The reversal of 105555001 is 100555501.

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 105555001 - 2¹⁹ = 105030713 is a prime.

It is a super-2 number, since 2×105555001² = 22283716472220002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105555011) 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, 635791 + ... + 635956.

It is an arithmetic number, because the mean of its divisors is an integer number (26706708).

Almost surely, 2^105555001 is an apocalyptic number.

It is an amenable number.

105555001 is a deficient number, since it is larger than the sum of its proper divisors (1271831).

105555001 is an equidigital number, since it uses as much as digits as its factorization.

105555001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271830.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 105555001 is about 10273.9963500091. The cubic root of 105555001 is about 472.5991520408.

It can be divided in two parts, 10555500 and 1, that added together give a palindrome (10555501).

The spelling of 105555001 in words is "one hundred five million, five hundred fifty-five thousand, one".