505544042620 has 24 divisors (see below), whose sum is σ = 1124092048464. Its totient is φ = 190322462976.

The previous prime is 505544042617. The next prime is 505544042621. The reversal of 505544042620 is 26240445505.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 505544042620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505544042621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743446782 + ... + 743447461.

It is an arithmetic number, because the mean of its divisors is an integer number (46837168686).

Almost surely, 2^505544042620 is an apocalyptic number.

It is an amenable number.

505544042620 is an abundant number, since it is smaller than the sum of its proper divisors (618548005844).

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

505544042620 is a wasteful number, since it uses less digits than its factorization.

505544042620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486894269 (or 1486894267 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

The spelling of 505544042620 in words is "five hundred five billion, five hundred forty-four million, forty-two thousand, six hundred twenty".