505720002 has 8 divisors (see below), whose sum is σ = 1011440016. Its totient is φ = 168573332.

The previous prime is 505719967. The next prime is 505720003. The reversal of 505720002 is 200027505.

It is a sphenic number, since it is the product of 3 distinct primes.

505720002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (505720003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42143328 + ... + 42143339.

It is an arithmetic number, because the mean of its divisors is an integer number (126430002).

Almost surely, 2^505720002 is an apocalyptic number.

505720002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

505720002 is a wasteful number, since it uses less digits than its factorization.

505720002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84286672.

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 505720002 is about 22488.2191824964. The cubic root of 505720002 is about 796.7157029003.

Adding to 505720002 its reverse (200027505), we get a palindrome (705747507).

The spelling of 505720002 in words is "five hundred five million, seven hundred twenty thousand, two".