505251440010 has 24 divisors (see below), whose sum is σ = 1313653744260. Its totient is φ = 134733717312.

The previous prime is 505251440009. The next prime is 505251440087. The reversal of 505251440010 is 10044152505.

505251440010 is a `hidden beast` number, since 5 + 0 + 5 + 251 + 4 + 400 + 1 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 486577397601 + 18674042409 = 697551^2 + 136653^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2806952355 + ... + 2806952534.

Almost surely, 2^505251440010 is an apocalyptic number.

505251440010 is an abundant number, since it is smaller than the sum of its proper divisors (808402304250).

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

505251440010 is a wasteful number, since it uses less digits than its factorization.

505251440010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613904902 (or 5613904899 counting only the distinct ones).

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

Adding to 505251440010 its reverse (10044152505), we get a palindrome (515295592515).

The spelling of 505251440010 in words is "five hundred five billion, two hundred fifty-one million, four hundred forty thousand, ten".