505000553 has 8 divisors (see below), whose sum is σ = 507171240. Its totient is φ = 502835200.

The previous prime is 505000549. The next prime is 505000583. The reversal of 505000553 is 355000505.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 427331584 + 77668969 = 20672^2 + 8813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505000553 - 2² = 505000549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505000523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391133 + ... + 392421.

It is an arithmetic number, because the mean of its divisors is an integer number (63396405).

Almost surely, 2^505000553 is an apocalyptic number.

It is an amenable number.

505000553 is a deficient number, since it is larger than the sum of its proper divisors (2170687).

505000553 is a wasteful number, since it uses less digits than its factorization.

505000553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667.

The product of its (nonzero) digits is 1875, while the sum is 23.

The square root of 505000553 is about 22472.2173583294. The cubic root of 505000553 is about 796.3377148551.

The spelling of 505000553 in words is "five hundred five million, five hundred fifty-three", and thus it is an aban number.