505000555049 has 4 divisors (see below), whose sum is σ = 506298757380. Its totient is φ = 503702352720.

The previous prime is 505000554997. The next prime is 505000555057. The reversal of 505000555049 is 940555000505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940555000505 = 5 ⋅188111000101.

It can be written as a sum of positive squares in 2 ways, for example, as 110070005824 + 394930549225 = 331768^2 + 628435^2 .

It is a cyclic number.

It is not a de Polignac number, because 505000555049 - 2¹² = 505000550953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505000555099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649100582 + ... + 649101359.

It is an arithmetic number, because the mean of its divisors is an integer number (126574689345).

Almost surely, 2^505000555049 is an apocalyptic number.

It is an amenable number.

505000555049 is a deficient number, since it is larger than the sum of its proper divisors (1298202331).

505000555049 is a wasteful number, since it uses less digits than its factorization.

505000555049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298202330.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 505000555049 in words is "five hundred five billion, five hundred fifty-five thousand, forty-nine".