405320521052 has 6 divisors (see below), whose sum is σ = 709310911848. Its totient is φ = 202660260524.

The previous prime is 405320521037. The next prime is 405320521069. The reversal of 405320521052 is 250125023504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50665065128 + ... + 50665065135.

It is an arithmetic number, because the mean of its divisors is an integer number (118218485308).

Almost surely, 2^405320521052 is an apocalyptic number.

It is an amenable number.

405320521052 is a deficient number, since it is larger than the sum of its proper divisors (303990390796).

405320521052 is a wasteful number, since it uses less digits than its factorization.

405320521052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101330130267 (or 101330130265 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 405320521052 its reverse (250125023504), we get a palindrome (655445544556).

The spelling of 405320521052 in words is "four hundred five billion, three hundred twenty million, five hundred twenty-one thousand, fifty-two".