55050005550561 has 64 divisors (see below), whose sum is σ = 86503097856000. Its totient is φ = 30482752156416.

The previous prime is 55050005550559. The next prime is 55050005550611. The reversal of 55050005550561 is 16505550005055.

It is not a de Polignac number, because 55050005550561 - 2¹ = 55050005550559 is a prime.

It is a super-2 number, since 2×55050005550561² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55050005550361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227393166 + ... + 227635128.

It is an arithmetic number, because the mean of its divisors is an integer number (1351610904000).

Almost surely, 2^{55050005550561} is an apocalyptic number.

It is an amenable number.

55050005550561 is a deficient number, since it is larger than the sum of its proper divisors (31453092305439).

55050005550561 is a wasteful number, since it uses less digits than its factorization.

55050005550561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243198.

The product of its (nonzero) digits is 468750, while the sum is 42.

The spelling of 55050005550561 in words is "fifty-five trillion, fifty billion, five million, five hundred fifty thousand, five hundred sixty-one".