505526238 has 96 divisors (see below), whose sum is σ = 1349176320. Its totient is φ = 139754160.

The previous prime is 505526237. The next prime is 505526257. The reversal of 505526238 is 832625505.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505526237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78945 + ... + 85107.

It is an arithmetic number, because the mean of its divisors is an integer number (14053920).

Almost surely, 2^505526238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505526238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674588160).

505526238 is an abundant number, since it is smaller than the sum of its proper divisors (843650082).

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

505526238 is a wasteful number, since it uses less digits than its factorization.

505526238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219 (or 6206 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 505526238 is about 22483.9106473941. The cubic root of 505526238 is about 796.6139374036.

The spelling of 505526238 in words is "five hundred five million, five hundred twenty-six thousand, two hundred thirty-eight".