55550055005565 has 64 divisors (see below), whose sum is σ = 95304187560960. Its totient is φ = 27529654763520.

The previous prime is 55550055005537. The next prime is 55550055005591. The reversal of 55550055005565 is 56550055005555.

It is not a de Polignac number, because 55550055005565 - 2¹⁷ = 55550054874493 is a prime.

It is a super-2 number, since 2×55550055005565² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 514388875 + ... + 514496855.

It is an arithmetic number, because the mean of its divisors is an integer number (1489127930640).

Almost surely, 2^{55550055005565} is an apocalyptic number.

It is an amenable number.

55550055005565 is a deficient number, since it is larger than the sum of its proper divisors (39754132555395).

55550055005565 is a wasteful number, since it uses less digits than its factorization.

55550055005565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133622.

The product of its (nonzero) digits is 11718750, while the sum is 51.

The spelling of 55550055005565 in words is "fifty-five trillion, five hundred fifty billion, fifty-five million, five thousand, five hundred sixty-five".