1051055560999 has 4 divisors (see below), whose sum is σ = 1051674923664. Its totient is φ = 1050436198336.

The previous prime is 1051055560991. The next prime is 1051055561029. The reversal of 1051055560999 is 9990655501501.

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

It is a cyclic number.

It is not a de Polignac number, because 1051055560999 - 2³ = 1051055560991 is a prime.

It is a super-2 number, since 2×1051055560999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051055560991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309678787 + ... + 309682180.

It is an arithmetic number, because the mean of its divisors is an integer number (262918730916).

Almost surely, 2^{1051055560999} is an apocalyptic number.

1051055560999 is a deficient number, since it is larger than the sum of its proper divisors (619362665).

1051055560999 is an equidigital number, since it uses as much as digits as its factorization.

1051055560999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619362664.

The product of its (nonzero) digits is 2733750, while the sum is 55.

The spelling of 1051055560999 in words is "one trillion, fifty-one billion, fifty-five million, five hundred sixty thousand, nine hundred ninety-nine".