1550405005055 has 16 divisors (see below), whose sum is σ = 1982473678080. Its totient is φ = 1159928320512.

The previous prime is 1550405005043. The next prime is 1550405005081. The reversal of 1550405005055 is 5505005040551.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1550405005055 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58076015 + ... + 58102704.

It is an arithmetic number, because the mean of its divisors is an integer number (123904604880).

Almost surely, 2^{1550405005055} is an apocalyptic number.

1550405005055 is a deficient number, since it is larger than the sum of its proper divisors (432068673025).

1550405005055 is a wasteful number, since it uses less digits than its factorization.

1550405005055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116178898.

The product of its (nonzero) digits is 62500, while the sum is 35.

The spelling of 1550405005055 in words is "one trillion, five hundred fifty billion, four hundred five million, five thousand, fifty-five".