505320620 has 24 divisors (see below), whose sum is σ = 1212769824. Its totient is φ = 173252736.

The previous prime is 505320617. The next prime is 505320643. The reversal of 505320620 is 26023505.

It is a happy number.

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, 1804577 + ... + 1804856.

It is an arithmetic number, because the mean of its divisors is an integer number (50532076).

Almost surely, 2^505320620 is an apocalyptic number.

It is an amenable number.

505320620 is an abundant number, since it is smaller than the sum of its proper divisors (707449204).

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

505320620 is a wasteful number, since it uses less digits than its factorization.

505320620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609449 (or 3609447 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 505320620 is about 22479.3376236935. The cubic root of 505320620 is about 796.5059177038.

The spelling of 505320620 in words is "five hundred five million, three hundred twenty thousand, six hundred twenty".