405125145050 has 96 divisors (see below), whose sum is σ = 771037637040. Its totient is φ = 158340096000.

The previous prime is 405125145041. The next prime is 405125145091. The reversal of 405125145050 is 50541521504.

It can be written as a sum of positive squares in 24 ways, for example, as 9145670689 + 395979474361 = 95633^2 + 629269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 405125144998 and 405125145016.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152473322 + ... + 152475978.

Almost surely, 2^405125145050 is an apocalyptic number.

405125145050 is a deficient number, since it is larger than the sum of its proper divisors (365912491990).

405125145050 is a wasteful number, since it uses less digits than its factorization.

405125145050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156 (or 3151 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 405125145050 its reverse (50541521504), we get a palindrome (455666666554).

The spelling of 405125145050 in words is "four hundred five billion, one hundred twenty-five million, one hundred forty-five thousand, fifty".