1005220515055 has 32 divisors (see below), whose sum is σ = 1263270297600. Its totient is φ = 766429564032.

The previous prime is 1005220515031. The next prime is 1005220515097. The reversal of 1005220515055 is 5505150225001.

It is a cyclic number.

It is not a de Polignac number, because 1005220515055 - 2¹¹ = 1005220513007 is a prime.

It is a congruent number.

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, 52793997 + ... + 52813033.

It is an arithmetic number, because the mean of its divisors is an integer number (39477196800).

Almost surely, 2^{1005220515055} is an apocalyptic number.

1005220515055 is a deficient number, since it is larger than the sum of its proper divisors (258049782545).

1005220515055 is a wasteful number, since it uses less digits than its factorization.

1005220515055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20703.

The product of its (nonzero) digits is 12500, while the sum is 31.

The spelling of 1005220515055 in words is "one trillion, five billion, two hundred twenty million, five hundred fifteen thousand, fifty-five".