505726240573 has 4 divisors (see below), whose sum is σ = 505767831808. Its totient is φ = 505684649340.

The previous prime is 505726240561. The next prime is 505726240597. The reversal of 505726240573 is 375042627505.

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 505726240573 - 2¹³ = 505726232381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505726240553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20777373 + ... + 20801698.

It is an arithmetic number, because the mean of its divisors is an integer number (126441957952).

Almost surely, 2^505726240573 is an apocalyptic number.

It is an amenable number.

505726240573 is a deficient number, since it is larger than the sum of its proper divisors (41591235).

505726240573 is a wasteful number, since it uses less digits than its factorization.

505726240573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41591234.

The product of its (nonzero) digits is 1764000, while the sum is 46.

The spelling of 505726240573 in words is "five hundred five billion, seven hundred twenty-six million, two hundred forty thousand, five hundred seventy-three".