505441355320 has 32 divisors (see below), whose sum is σ = 1240628782320. Its totient is φ = 183796856320.

The previous prime is 505441355291. The next prime is 505441355333. The reversal of 505441355320 is 23553144505.

It is a self number, because there is not a number n which added to its sum of digits gives 505441355320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574364737 + ... + 574365616.

Almost surely, 2^505441355320 is an apocalyptic number.

It is an amenable number.

505441355320 is an abundant number, since it is smaller than the sum of its proper divisors (735187427000).

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

505441355320 is a wasteful number, since it uses less digits than its factorization.

505441355320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148730375 (or 1148730371 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 505441355320 its reverse (23553144505), we get a palindrome (528994499825).

The spelling of 505441355320 in words is "five hundred five billion, four hundred forty-one million, three hundred fifty-five thousand, three hundred twenty".