55501808049999 has 24 divisors (see below), whose sum is σ = 82352877461712. Its totient is φ = 36000086814720.

The previous prime is 55501808049997. The next prime is 55501808050027. The reversal of 55501808049999 is 99994080810555.

55501808049999 is a `hidden beast` number, since 5 + 5 + 50 + 1 + 8 + 0 + 80 + 499 + 9 + 9 = 666.

It is not a de Polignac number, because 55501808049999 - 2¹ = 55501808049997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55501808049997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278919072 + ... + 279117989.

It is an arithmetic number, because the mean of its divisors is an integer number (3431369894238).

Almost surely, 2^{55501808049999} is an apocalyptic number.

55501808049999 is a deficient number, since it is larger than the sum of its proper divisors (26851069411713).

55501808049999 is a wasteful number, since it uses less digits than its factorization.

55501808049999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558037367 (or 558037364 counting only the distinct ones).

The product of its (nonzero) digits is 209952000, while the sum is 72.

The spelling of 55501808049999 in words is "fifty-five trillion, five hundred one billion, eight hundred eight million, forty-nine thousand, nine hundred ninety-nine".