55537455473555 has 16 divisors (see below), whose sum is σ = 72709983929088. Its totient is φ = 40387317900000.

The previous prime is 55537455473477. The next prime is 55537455473569.

55537455473555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55537455473555 - 2¹⁴ = 55537455457171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43855121 + ... + 45103730.

It is an arithmetic number, because the mean of its divisors is an integer number (4544373995568).

Almost surely, 2^{55537455473555} is an apocalyptic number.

55537455473555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55537455473555 is a deficient number, since it is larger than the sum of its proper divisors (17172528455533).

55537455473555 is a wasteful number, since it uses less digits than its factorization.

55537455473555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88970218.

The product of its digits is 2756250000, while the sum is 68.

The spelling of 55537455473555 in words is "fifty-five trillion, five hundred thirty-seven billion, four hundred fifty-five million, four hundred seventy-three thousand, five hundred fifty-five".