505530525280 has 48 divisors (see below), whose sum is σ = 1302890040144. Its totient is φ = 183829281280.

The previous prime is 505530525263. The next prime is 505530525287. The reversal of 505530525280 is 82525035505.

It is a super-2 number, since 2×505530525280² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505530525287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143614867 + ... + 143618386.

It is an arithmetic number, because the mean of its divisors is an integer number (27143542503).

Almost surely, 2^505530525280 is an apocalyptic number.

It is an amenable number.

505530525280 is an abundant number, since it is smaller than the sum of its proper divisors (797359514864).

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

505530525280 is a wasteful number, since it uses less digits than its factorization.

505530525280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287233279 (or 287233271 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 505530525280 in words is "five hundred five billion, five hundred thirty million, five hundred twenty-five thousand, two hundred eighty".