405530344025 has 36 divisors (see below), whose sum is σ = 512955418752. Its totient is φ = 318035565120.

The previous prime is 405530344013. The next prime is 405530344033. The reversal of 405530344025 is 520443035504.

It is not a de Polignac number, because 405530344025 - 2¹⁸ = 405530081881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 146558192 + ... + 146560958.

It is an arithmetic number, because the mean of its divisors is an integer number (14248761632).

Almost surely, 2^405530344025 is an apocalyptic number.

It is an amenable number.

405530344025 is a deficient number, since it is larger than the sum of its proper divisors (107425074727).

405530344025 is a wasteful number, since it uses less digits than its factorization.

405530344025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970 (or 4912 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 405530344025 its reverse (520443035504), we get a palindrome (925973379529).

The spelling of 405530344025 in words is "four hundred five billion, five hundred thirty million, three hundred forty-four thousand, twenty-five".