505250500553 has 4 divisors (see below), whose sum is σ = 505329120720. Its totient is φ = 505171880388.

The previous prime is 505250500519. The next prime is 505250500583. The reversal of 505250500553 is 355005052505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505250500553 - 2¹⁴ = 505250484169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505250500583) 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, 39300443 + ... + 39313296.

It is an arithmetic number, because the mean of its divisors is an integer number (126332280180).

Almost surely, 2^505250500553 is an apocalyptic number.

It is an amenable number.

505250500553 is a deficient number, since it is larger than the sum of its proper divisors (78620167).

505250500553 is an equidigital number, since it uses as much as digits as its factorization.

505250500553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78620166.

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 505250500553 in words is "five hundred five billion, two hundred fifty million, five hundred thousand, five hundred fifty-three".