505027720 has 16 divisors (see below), whose sum is σ = 1136312460. Its totient is φ = 202011072.

The previous prime is 505027711. The next prime is 505027729. The reversal of 505027720 is 27720505.

It is an interprime number because it is at equal distance from previous prime (505027711) and next prime (505027729).

It can be written as a sum of positive squares in 2 ways, for example, as 487438084 + 17589636 = 22078^2 + 4194^2 .

It is not an unprimeable number, because it can be changed into a prime (505027729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6312807 + ... + 6312886.

Almost surely, 2^505027720 is an apocalyptic number.

It is an amenable number.

505027720 is an abundant number, since it is smaller than the sum of its proper divisors (631284740).

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

505027720 is a wasteful number, since it uses less digits than its factorization.

505027720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625704 (or 12625700 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 505027720 is about 22472.8218076858. The cubic root of 505027720 is about 796.3519945218.

The spelling of 505027720 in words is "five hundred five million, twenty-seven thousand, seven hundred twenty".