505545212533 has 4 divisors (see below), whose sum is σ = 505818925920. Its totient is φ = 505271499148.

The previous prime is 505545212527. The next prime is 505545212561. The reversal of 505545212533 is 335212545505.

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 505545212533 - 2³⁷ = 368106259061 is a prime.

It is a super-2 number, since 2×505545212533² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505545212503) 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, 136853923 + ... + 136857616.

It is an arithmetic number, because the mean of its divisors is an integer number (126454731480).

Almost surely, 2^505545212533 is an apocalyptic number.

It is an amenable number.

505545212533 is a deficient number, since it is larger than the sum of its proper divisors (273713387).

505545212533 is a wasteful number, since it uses less digits than its factorization.

505545212533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273713386.

The product of its (nonzero) digits is 450000, while the sum is 40.

The spelling of 505545212533 in words is "five hundred five billion, five hundred forty-five million, two hundred twelve thousand, five hundred thirty-three".