505322553 has 8 divisors (see below), whose sum is σ = 679726368. Its totient is φ = 333900224.

The previous prime is 505322539. The next prime is 505322561. The reversal of 505322553 is 355223505.

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 505322553 - 2¹³ = 505314361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505322553.

It is not an unprimeable number, because it can be changed into a prime (505322563) 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, 744975 + ... + 745652.

It is an arithmetic number, because the mean of its divisors is an integer number (84965796).

Almost surely, 2^505322553 is an apocalyptic number.

It is an amenable number.

505322553 is a deficient number, since it is larger than the sum of its proper divisors (174403815).

505322553 is a wasteful number, since it uses less digits than its factorization.

505322553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490743.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 505322553 is about 22479.3806186914. The cubic root of 505322553 is about 796.5069333256.

The spelling of 505322553 in words is "five hundred five million, three hundred twenty-two thousand, five hundred fifty-three".