505639092 has 96 divisors (see below), whose sum is σ = 1433472768. Its totient is φ = 135419904.

The previous prime is 505639081. The next prime is 505639111. The reversal of 505639092 is 290936505.

It is a self number, because there is not a number n which added to its sum of digits gives 505639092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452118 + ... + 453234.

It is an arithmetic number, because the mean of its divisors is an integer number (14932008).

Almost surely, 2^505639092 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 505639092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716736384).

505639092 is an abundant number, since it is smaller than the sum of its proper divisors (927833676).

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

505639092 is a wasteful number, since it uses less digits than its factorization.

505639092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 39.

The square root of 505639092 is about 22486.4201686262. The cubic root of 505639092 is about 796.6732118609.

The spelling of 505639092 in words is "five hundred five million, six hundred thirty-nine thousand, ninety-two".