505030753 has 4 divisors (see below), whose sum is σ = 505688260. Its totient is φ = 504373248.

The previous prime is 505030741. The next prime is 505030759. The reversal of 505030753 is 357030505.

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

It can be written as a sum of positive squares in 2 ways, for example, as 242331489 + 262699264 = 15567^2 + 16208^2 .

It is a cyclic number.

It is not a de Polignac number, because 505030753 - 2¹³ = 505022561 is a prime.

It is a super-3 number, since 3×505030753³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505030759) 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, 327600 + ... + 329137.

It is an arithmetic number, because the mean of its divisors is an integer number (126422065).

Almost surely, 2^505030753 is an apocalyptic number.

It is an amenable number.

505030753 is a deficient number, since it is larger than the sum of its proper divisors (657507).

505030753 is an equidigital number, since it uses as much as digits as its factorization.

505030753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657506.

The product of its (nonzero) digits is 7875, while the sum is 28.

The square root of 505030753 is about 22472.8892890968. The cubic root of 505030753 is about 796.3535887121.

The spelling of 505030753 in words is "five hundred five million, thirty thousand, seven hundred fifty-three".