505555542 has 24 divisors (see below), whose sum is σ = 1113938280. Its totient is φ = 165661920.

The previous prime is 505555541. The next prime is 505555577. The reversal of 505555542 is 245555505.

505555542 is a `hidden beast` number, since 50 + 5 + 55 + 554 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 505555497 and 505555506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505555541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236959 + ... + 239082.

It is an arithmetic number, because the mean of its divisors is an integer number (46414095).

Almost surely, 2^505555542 is an apocalyptic number.

505555542 is an abundant number, since it is smaller than the sum of its proper divisors (608382738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505555542 is a wasteful number, since it uses less digits than its factorization.

505555542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476108 (or 476105 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 36.

The square root of 505555542 is about 22484.5623039453. The cubic root of 505555542 is about 796.6293296305.

The spelling of 505555542 in words is "five hundred five million, five hundred fifty-five thousand, five hundred forty-two".