505251255360 has 336 divisors, whose sum is σ = 1708017635520. Its totient is φ = 126515773440.

The previous prime is 505251255359. The next prime is 505251255367. The reversal of 505251255360 is 63552152505.

It is not an unprimeable number, because it can be changed into a prime (505251255367) 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, 136221186 + ... + 136224894.

It is an arithmetic number, because the mean of its divisors is an integer number (5083385820).

Almost surely, 2^505251255360 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 505251255360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854008817760).

505251255360 is an abundant number, since it is smaller than the sum of its proper divisors (1202766380160).

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

505251255360 is a wasteful number, since it uses less digits than its factorization.

505251255360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254 (or 4227 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 39.

The spelling of 505251255360 in words is "five hundred five billion, two hundred fifty-one million, two hundred fifty-five thousand, three hundred sixty".