1055551055506 has 4 divisors (see below), whose sum is σ = 1583326583262. Its totient is φ = 527775527752.

The previous prime is 1055551055483. The next prime is 1055551055513. The reversal of 1055551055506 is 6055501555501.

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

It can be written as a sum of positive squares in only one way, i.e., 782083766025 + 273467289481 = 884355^2 + 522941^2 .

It is a super-2 number, since 2×1055551055506² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263887763875 + ... + 263887763878.

Almost surely, 2^{1055551055506} is an apocalyptic number.

1055551055506 is a deficient number, since it is larger than the sum of its proper divisors (527775527756).

1055551055506 is an equidigital number, since it uses as much as digits as its factorization.

1055551055506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527775527755.

The product of its (nonzero) digits is 468750, while the sum is 43.

The spelling of 1055551055506 in words is "one trillion, fifty-five billion, five hundred fifty-one million, fifty-five thousand, five hundred six".