405500513252 has 6 divisors (see below), whose sum is σ = 709625898198. Its totient is φ = 202750256624.

The previous prime is 405500513237. The next prime is 405500513281. The reversal of 405500513252 is 252315005504.

It can be written as a sum of positive squares in only one way, i.e., 400747238116 + 4753275136 = 633046^2 + 68944^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 50687564153 + ... + 50687564160.

It is an arithmetic number, because the mean of its divisors is an integer number (118270983033).

Almost surely, 2^405500513252 is an apocalyptic number.

It is an amenable number.

405500513252 is a deficient number, since it is larger than the sum of its proper divisors (304125384946).

405500513252 is a wasteful number, since it uses less digits than its factorization.

405500513252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101375128317 (or 101375128315 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 405500513252 its reverse (252315005504), we get a palindrome (657815518756).

The spelling of 405500513252 in words is "four hundred five billion, five hundred million, five hundred thirteen thousand, two hundred fifty-two".