505534620 has 24 divisors (see below), whose sum is σ = 1415497104. Its totient is φ = 134809216.

The previous prime is 505534619. The next prime is 505534621. The reversal of 505534620 is 26435505.

It is an interprime number because it is at equal distance from previous prime (505534619) and next prime (505534621).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505534621) 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, 4212729 + ... + 4212848.

It is an arithmetic number, because the mean of its divisors is an integer number (58979046).

Almost surely, 2^505534620 is an apocalyptic number.

It is an amenable number.

505534620 is an abundant number, since it is smaller than the sum of its proper divisors (909962484).

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

505534620 is a wasteful number, since it uses less digits than its factorization.

505534620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425589 (or 8425587 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 505534620 is about 22484.0970465794. The cubic root of 505534620 is about 796.6183401959.

The spelling of 505534620 in words is "five hundred five million, five hundred thirty-four thousand, six hundred twenty".