505000050554 has 4 divisors (see below), whose sum is σ = 757500075834. Its totient is φ = 252500025276.

The previous prime is 505000050539. The next prime is 505000050557. The reversal of 505000050554 is 455050000505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 497627252329 + 7372798225 = 705427^2 + 85865^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505000050557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126250012637 + ... + 126250012640.

Almost surely, 2^505000050554 is an apocalyptic number.

505000050554 is a deficient number, since it is larger than the sum of its proper divisors (252500025280).

505000050554 is a wasteful number, since it uses less digits than its factorization.

505000050554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252500025279.

The product of its (nonzero) digits is 12500, while the sum is 29.

The spelling of 505000050554 in words is "five hundred five billion, fifty thousand, five hundred fifty-four".