1055551005545 has 32 divisors (see below), whose sum is σ = 1300746580224. Its totient is φ = 822013920000.

The previous prime is 1055551005521. The next prime is 1055551005559. The reversal of 1055551005545 is 5455001555501.

It is a happy number.

It is not a de Polignac number, because 1055551005545 - 2²⁰ = 1055549956969 is a prime.

It is a super-2 number, since 2×1055551005545² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 54118295 + ... + 54137795.

It is an arithmetic number, because the mean of its divisors is an integer number (40648330632).

Almost surely, 2^{1055551005545} is an apocalyptic number.

It is an amenable number.

1055551005545 is a deficient number, since it is larger than the sum of its proper divisors (245195574679).

1055551005545 is a wasteful number, since it uses less digits than its factorization.

1055551005545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21393.

The product of its (nonzero) digits is 312500, while the sum is 41.

The spelling of 1055551005545 in words is "one trillion, fifty-five billion, five hundred fifty-one million, five thousand, five hundred forty-five".