505200445405 has 16 divisors (see below), whose sum is σ = 609847833600. Its totient is φ = 401761440640.

The previous prime is 505200445361. The next prime is 505200445427. The reversal of 505200445405 is 504544002505.

It is not a de Polignac number, because 505200445405 - 2¹¹ = 505200443357 is a prime.

It is a super-2 number, since 2×505200445405² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308460 + ... + 1051450.

It is an arithmetic number, because the mean of its divisors is an integer number (38115489600).

Almost surely, 2^505200445405 is an apocalyptic number.

It is an amenable number.

505200445405 is a deficient number, since it is larger than the sum of its proper divisors (104647388195).

505200445405 is a wasteful number, since it uses less digits than its factorization.

505200445405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743804.

The product of its (nonzero) digits is 80000, while the sum is 34.

The spelling of 505200445405 in words is "five hundred five billion, two hundred million, four hundred forty-five thousand, four hundred five".