1055015501109 has 4 divisors (see below), whose sum is σ = 1406687334816. Its totient is φ = 703343667404.

The previous prime is 1055015501101. The next prime is 1055015501123. The reversal of 1055015501109 is 9011055105501.

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 1055015501109 - 2³ = 1055015501101 is a prime.

It is a super-2 number, since 2×1055015501109² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055015501109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055015501101) 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, 175835916849 + ... + 175835916854.

It is an arithmetic number, because the mean of its divisors is an integer number (351671833704).

Almost surely, 2^{1055015501109} is an apocalyptic number.

It is an amenable number.

1055015501109 is a deficient number, since it is larger than the sum of its proper divisors (351671833707).

1055015501109 is an equidigital number, since it uses as much as digits as its factorization.

1055015501109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351671833706.

The product of its (nonzero) digits is 5625, while the sum is 33.

The spelling of 1055015501109 in words is "one trillion, fifty-five billion, fifteen million, five hundred one thousand, one hundred nine".