1055510601055 has 4 divisors (see below), whose sum is σ = 1266612721272. Its totient is φ = 844408480840.

The previous prime is 1055510601053. The next prime is 1055510601071. The reversal of 1055510601055 is 5501060155501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1055510601055 - 2¹ = 1055510601053 is a prime.

It is a super-2 number, since 2×1055510601055² (a number of 25 digits) 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 1055510601055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055510601053) 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, 105551060101 + ... + 105551060110.

It is an arithmetic number, because the mean of its divisors is an integer number (316653180318).

Almost surely, 2^{1055510601055} is an apocalyptic number.

1055510601055 is a deficient number, since it is larger than the sum of its proper divisors (211102120217).

1055510601055 is an equidigital number, since it uses as much as digits as its factorization.

1055510601055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211102120216.

The product of its (nonzero) digits is 18750, while the sum is 34.

Adding to 1055510601055 its reverse (5501060155501), we get a palindrome (6556570756556).

The spelling of 1055510601055 in words is "one trillion, fifty-five billion, five hundred ten million, six hundred one thousand, fifty-five".