505411205 has 16 divisors (see below), whose sum is σ = 653837184. Its totient is φ = 372832320.

The previous prime is 505411201. The next prime is 505411211. The reversal of 505411205 is 502114505.

It is a happy number.

It is not a de Polignac number, because 505411205 - 2² = 505411201 is a prime.

It is a super-2 number, since 2×505411205² = 510880972279104050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505411201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67352 + ... + 74478.

It is an arithmetic number, because the mean of its divisors is an integer number (40864824).

Almost surely, 2^505411205 is an apocalyptic number.

It is an amenable number.

505411205 is a deficient number, since it is larger than the sum of its proper divisors (148425979).

505411205 is a wasteful number, since it uses less digits than its factorization.

505411205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 505411205 is about 22481.3523836979. The cubic root of 505411205 is about 796.5535093877.

The spelling of 505411205 in words is "five hundred five million, four hundred eleven thousand, two hundred five".