505907620 has 24 divisors (see below), whose sum is σ = 1078265664. Its totient is φ = 199342176.

The previous prime is 505907617. The next prime is 505907627. The reversal of 505907620 is 26709505.

It is not an unprimeable number, because it can be changed into a prime (505907627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187432 + ... + 190111.

It is an arithmetic number, because the mean of its divisors is an integer number (44927736).

Almost surely, 2^505907620 is an apocalyptic number.

It is an amenable number.

505907620 is an abundant number, since it is smaller than the sum of its proper divisors (572358044).

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

505907620 is a wasteful number, since it uses less digits than its factorization.

505907620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377619 (or 377617 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 505907620 is about 22492.3902687109. The cubic root of 505907620 is about 796.8142157301.

The spelling of 505907620 in words is "five hundred five million, nine hundred seven thousand, six hundred twenty".