505560924 has 72 divisors (see below), whose sum is σ = 1417044720. Its totient is φ = 150681600.

The previous prime is 505560919. The next prime is 505560929. The reversal of 505560924 is 429065505.

505560924 is a `hidden beast` number, since 5 + 0 + 5 + 560 + 92 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (505560919) and next prime (505560929).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505560929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13692 + ... + 34620.

Almost surely, 2^505560924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505560924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708522360).

505560924 is an abundant number, since it is smaller than the sum of its proper divisors (911483796).

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

505560924 is a wasteful number, since it uses less digits than its factorization.

505560924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21011 (or 21006 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 505560924 is about 22484.6819857431. The cubic root of 505560924 is about 796.6321565167.

The spelling of 505560924 in words is "five hundred five million, five hundred sixty thousand, nine hundred twenty-four".