55555050565 has 16 divisors (see below), whose sum is σ = 76258046592. Its totient is φ = 38060760384.

The previous prime is 55555050527. The next prime is 55555050581. The reversal of 55555050565 is 56505055555.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55555050565 - 2¹⁵ = 55555017797 is a prime.

It is a congruent number.

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, 671419 + ... + 749608.

It is an arithmetic number, because the mean of its divisors is an integer number (4766127912).

Almost surely, 2^55555050565 is an apocalyptic number.

It is an amenable number.

55555050565 is a deficient number, since it is larger than the sum of its proper divisors (20702996027).

55555050565 is a wasteful number, since it uses less digits than its factorization.

55555050565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422156.

The product of its (nonzero) digits is 2343750, while the sum is 46.

The spelling of 55555050565 in words is "fifty-five billion, five hundred fifty-five million, fifty thousand, five hundred sixty-five".