505066915450 has 24 divisors (see below), whose sum is σ = 939526546140. Its totient is φ = 202004812800.

The previous prime is 505066915421. The next prime is 505066915487. The reversal of 505066915450 is 54519660505.

It can be written as a sum of positive squares in 6 ways, for example, as 272286719721 + 232780195729 = 521811^2 + 482473^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 505066915450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80145 + ... + 1008244.

Almost surely, 2^505066915450 is an apocalyptic number.

505066915450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505066915450 is a deficient number, since it is larger than the sum of its proper divisors (434459630690).

505066915450 is a wasteful number, since it uses less digits than its factorization.

505066915450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097682 (or 1097677 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 505066915450 in words is "five hundred five billion, sixty-six million, nine hundred fifteen thousand, four hundred fifty".