1056100055 has 4 divisors (see below), whose sum is σ = 1267320072. Its totient is φ = 844880040.

The previous prime is 1056100049. The next prime is 1056100057. The reversal of 1056100055 is 5500016501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5500016501 = 7 ⋅785716643.

It is not a de Polignac number, because 1056100055 - 2⁸ = 1056099799 is a prime.

It is a super-2 number, since 2×1056100055² = 2230694652342006050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056100055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056100057) 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, 105610001 + ... + 105610010.

It is an arithmetic number, because the mean of its divisors is an integer number (316830018).

Almost surely, 2^1056100055 is an apocalyptic number.

1056100055 is a deficient number, since it is larger than the sum of its proper divisors (211220017).

1056100055 is an equidigital number, since it uses as much as digits as its factorization.

1056100055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211220016.

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

The square root of 1056100055 is about 32497.6930719705. The cubic root of 1056100055 is about 1018.3608348087.

Adding to 1056100055 its reverse (5500016501), we get a palindrome (6556116556).

The spelling of 1056100055 in words is "one billion, fifty-six million, one hundred thousand, fifty-five".