505550555541 has 24 divisors (see below), whose sum is σ = 775235148480. Its totient is φ = 316371194496.

The previous prime is 505550555483. The next prime is 505550555557. The reversal of 505550555541 is 145555055505.

505550555541 is a `hidden beast` number, since 5 + 0 + 5 + 5 + 50 + 5 + 55 + 541 = 666.

It is not a de Polignac number, because 505550555541 - 2¹⁰ = 505550554517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505550555641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4301185 + ... + 4417158.

It is an arithmetic number, because the mean of its divisors is an integer number (32301464520).

Almost surely, 2^505550555541 is an apocalyptic number.

505550555541 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

505550555541 is a deficient number, since it is larger than the sum of its proper divisors (269684592939).

505550555541 is a wasteful number, since it uses less digits than its factorization.

505550555541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718745 (or 8718742 counting only the distinct ones).

The product of its (nonzero) digits is 1562500, while the sum is 45.

The spelling of 505550555541 in words is "five hundred five billion, five hundred fifty million, five hundred fifty-five thousand, five hundred forty-one".