1055100001 has 4 divisors (see below), whose sum is σ = 1110631600. Its totient is φ = 999568404.

The previous prime is 1055099993. The next prime is 1055100017. The reversal of 1055100001 is 1000015501.

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 1055100001 - 2³ = 1055099993 is a prime.

It is a super-2 number, since 2×1055100001² = 2226472024220400002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055100031) 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, 27765771 + ... + 27765808.

It is an arithmetic number, because the mean of its divisors is an integer number (277657900).

Almost surely, 2^1055100001 is an apocalyptic number.

It is an amenable number.

1055100001 is a deficient number, since it is larger than the sum of its proper divisors (55531599).

1055100001 is an equidigital number, since it uses as much as digits as its factorization.

1055100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55531598.

The product of its (nonzero) digits is 25, while the sum is 13.

The square root of 1055100001 is about 32482.3028894196. The cubic root of 1055100001 is about 1018.0392941089.

Adding to 1055100001 its reverse (1000015501), we get a palindrome (2055115502).

The spelling of 1055100001 in words is "one billion, fifty-five million, one hundred thousand, one".