505200445421 has 8 divisors (see below), whose sum is σ = 579915428160. Its totient is φ = 431121335328.

The previous prime is 505200445361. The next prime is 505200445427. The reversal of 505200445421 is 124544002505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505200445421 - 2²² = 505196251117 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 (505200445427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158966456 + ... + 158969633.

It is an arithmetic number, because the mean of its divisors is an integer number (72489428520).

Almost surely, 2^505200445421 is an apocalyptic number.

It is an amenable number.

505200445421 is a deficient number, since it is larger than the sum of its proper divisors (74714982739).

505200445421 is a wasteful number, since it uses less digits than its factorization.

505200445421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317936323.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 505200445421 its reverse (124544002505), we get a palindrome (629744447926).

The spelling of 505200445421 in words is "five hundred five billion, two hundred million, four hundred forty-five thousand, four hundred twenty-one".