1055510500009 has 16 divisors (see below), whose sum is σ = 1293745322880. Its totient is φ = 840934448640.

The previous prime is 1055510500001. The next prime is 1055510500027. The reversal of 1055510500009 is 9000050155501.

It is a cyclic number.

It is not a de Polignac number, because 1055510500009 - 2³ = 1055510500001 is a prime.

It is a super-2 number, since 2×1055510500009² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055510500001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74862472 + ... + 74876569.

It is an arithmetic number, because the mean of its divisors is an integer number (80859082680).

Almost surely, 2^{1055510500009} is an apocalyptic number.

1055510500009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1055510500009 is a deficient number, since it is larger than the sum of its proper divisors (238234822871).

1055510500009 is a wasteful number, since it uses less digits than its factorization.

1055510500009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149739120.

The product of its (nonzero) digits is 5625, while the sum is 31.

It can be divided in two parts, 10555 and 10500009, that added together give a square (10510564 = 3242²).

The spelling of 1055510500009 in words is "one trillion, fifty-five billion, five hundred ten million, five hundred thousand, nine".