55561056005554 has 32 divisors (see below), whose sum is σ = 94874253143040. Its totient is φ = 24156165805200.

The previous prime is 55561056005551. The next prime is 55561056005561. The reversal of 55561056005554 is 45550065016555.

It is not an unprimeable number, because it can be changed into a prime (55561056005551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13281289 + ... + 16956259.

It is an arithmetic number, because the mean of its divisors is an integer number (2964820410720).

Almost surely, 2^{55561056005554} is an apocalyptic number.

55561056005554 is a deficient number, since it is larger than the sum of its proper divisors (39313197137486).

55561056005554 is a wasteful number, since it uses less digits than its factorization.

55561056005554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704886.

The product of its (nonzero) digits is 11250000, while the sum is 52.

The spelling of 55561056005554 in words is "fifty-five trillion, five hundred sixty-one billion, fifty-six million, five thousand, five hundred fifty-four".