55533633555 has 32 divisors (see below), whose sum is σ = 91759606848. Its totient is φ = 28658188800.

The previous prime is 55533633541. The next prime is 55533633583.

55533633555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55533633555 - 2¹¹ = 55533631507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175956 + ... + 376865.

It is an arithmetic number, because the mean of its divisors is an integer number (2867487714).

Almost surely, 2^55533633555 is an apocalyptic number.

55533633555 is a deficient number, since it is larger than the sum of its proper divisors (36225973293).

55533633555 is a wasteful number, since it uses less digits than its factorization.

55533633555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553047.

The product of its digits is 7593750, while the sum is 48.

The spelling of 55533633555 in words is "fifty-five billion, five hundred thirty-three million, six hundred thirty-three thousand, five hundred fifty-five".