55555050553 has 32 divisors (see below), whose sum is σ = 59235587712. Its totient is φ = 52040102400.

The previous prime is 55555050527. The next prime is 55555050581. The reversal of 55555050553 is 35505055555.

It is a cyclic number.

It is not a de Polignac number, because 55555050553 - 2⁵ = 55555050521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55555050503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23730163 + ... + 23732503.

It is an arithmetic number, because the mean of its divisors is an integer number (1851112116).

Almost surely, 2^55555050553 is an apocalyptic number.

55555050553 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

55555050553 is a deficient number, since it is larger than the sum of its proper divisors (3680537159).

55555050553 is a wasteful number, since it uses less digits than its factorization.

55555050553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665.

The product of its (nonzero) digits is 1171875, while the sum is 43.

The spelling of 55555050553 in words is "fifty-five billion, five hundred fifty-five million, fifty thousand, five hundred fifty-three".