55555050505541 has 4 divisors (see below), whose sum is σ = 56316078594732. Its totient is φ = 54794022416352.

The previous prime is 55555050505499. The next prime is 55555050505553. The reversal of 55555050505541 is 14550505055555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33330935157025 + 22224115348516 = 5773295^2 + 4714246^2 .

It is a cyclic number.

It is not a de Polignac number, because 55555050505541 - 2²⁶ = 55554983396677 is a prime.

It is a super-2 number, since 2×55555050505541² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55555050505541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555250505541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380514044486 + ... + 380514044631.

It is an arithmetic number, because the mean of its divisors is an integer number (14079019648683).

Almost surely, 2^{55555050505541} is an apocalyptic number.

It is an amenable number.

55555050505541 is a deficient number, since it is larger than the sum of its proper divisors (761028089191).

55555050505541 is an equidigital number, since it uses as much as digits as its factorization.

55555050505541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761028089190.

The product of its (nonzero) digits is 7812500, while the sum is 50.

The spelling of 55555050505541 in words is "fifty-five trillion, five hundred fifty-five billion, fifty million, five hundred five thousand, five hundred forty-one".