506311980 has 24 divisors (see below), whose sum is σ = 1417673712. Its totient is φ = 135016512.

The previous prime is 506311963. The next prime is 506311997. The reversal of 506311980 is 89113605.

It is an interprime number because it is at equal distance from previous prime (506311963) and next prime (506311997).

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, 4219207 + ... + 4219326.

It is an arithmetic number, because the mean of its divisors is an integer number (59069738).

Almost surely, 2^506311980 is an apocalyptic number.

It is an amenable number.

506311980 is an abundant number, since it is smaller than the sum of its proper divisors (911361732).

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

506311980 is a wasteful number, since it uses less digits than its factorization.

506311980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8438545 (or 8438543 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 506311980 is about 22501.3772911793. The cubic root of 506311980 is about 797.0264507835.

The spelling of 506311980 in words is "five hundred six million, three hundred eleven thousand, nine hundred eighty".