55055505555505 has 32 divisors (see below), whose sum is σ = 82526369796864. Its totient is φ = 34328195801856.

The previous prime is 55055505555503. The next prime is 55055505555529. The reversal of 55055505555505 is 50555550555055.

It is a cyclic number.

It is not a de Polignac number, because 55055505555505 - 2¹ = 55055505555503 is a prime.

It is a super-2 number, since 2×55055505555505² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55055505555503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902962882 + ... + 903023851.

It is an arithmetic number, because the mean of its divisors is an integer number (2578949056152).

Almost surely, 2^{55055505555505} is an apocalyptic number.

It is an amenable number.

55055505555505 is a deficient number, since it is larger than the sum of its proper divisors (27470864241359).

55055505555505 is a wasteful number, since it uses less digits than its factorization.

55055505555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805986825.

The product of its (nonzero) digits is 48828125, while the sum is 55.

The spelling of 55055505555505 in words is "fifty-five trillion, fifty-five billion, five hundred five million, five hundred fifty-five thousand, five hundred five".