505225202250 has 64 divisors (see below), whose sum is σ = 1263148473600. Its totient is φ = 134501681600.

The previous prime is 505225202221. The next prime is 505225202267. The reversal of 505225202250 is 52202522505.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 113049 + ... + 1011548.

It is an arithmetic number, because the mean of its divisors is an integer number (19736694900).

Almost surely, 2^505225202250 is an apocalyptic number.

505225202250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505225202250 is an abundant number, since it is smaller than the sum of its proper divisors (757923271350).

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

505225202250 is a wasteful number, since it uses less digits than its factorization.

505225202250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125216 (or 1125206 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

Adding to 505225202250 its reverse (52202522505), we get a palindrome (557427724755).

The spelling of 505225202250 in words is "five hundred five billion, two hundred twenty-five million, two hundred two thousand, two hundred fifty".