505250280 has 96 divisors (see below), whose sum is σ = 1728511200. Its totient is φ = 127640448.

The previous prime is 505250243. The next prime is 505250287. The reversal of 505250280 is 82052505.

It is not an unprimeable number, because it can be changed into a prime (505250287) 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, 30094 + ... + 43773.

It is an arithmetic number, because the mean of its divisors is an integer number (18005325).

Almost surely, 2^505250280 is an apocalyptic number.

It is an amenable number.

505250280 is an abundant number, since it is smaller than the sum of its proper divisors (1223260920).

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

505250280 is a wasteful number, since it uses less digits than its factorization.

505250280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73903 (or 73896 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 505250280 is about 22477.7730213649. The cubic root of 505250280 is about 796.4689584454.

The spelling of 505250280 in words is "five hundred five million, two hundred fifty thousand, two hundred eighty".