505021712 has 20 divisors (see below), whose sum is σ = 1053747660. Its totient is φ = 233086848.

The previous prime is 505021687. The next prime is 505021753. The reversal of 505021712 is 217120505.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 342102016 + 162919696 = 18496^2 + 12764^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213787 + ... + 1214202.

It is an arithmetic number, because the mean of its divisors is an integer number (52687383).

Almost surely, 2^505021712 is an apocalyptic number.

505021712 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

505021712 is an abundant number, since it is smaller than the sum of its proper divisors (548725948).

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

505021712 is a wasteful number, since it uses less digits than its factorization.

505021712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428010 (or 2428004 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 505021712 is about 22472.6881347114. The cubic root of 505021712 is about 796.3488366082.

It can be divided in two parts, 5050 and 21712, that added together give a palindrome (26762).

The spelling of 505021712 in words is "five hundred five million, twenty-one thousand, seven hundred twelve".