405522525254401 has 4 divisors (see below), whose sum is σ = 406725856190212. Its totient is φ = 404319194318592.

The previous prime is 405522525254317. The next prime is 405522525254411. The reversal of 405522525254401 is 104452525225504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151065632847376 + 254456892407025 = 12290876^2 + 15951705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405522525254401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405522525254411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601665467400 + ... + 601665468073.

It is an arithmetic number, because the mean of its divisors is an integer number (101681464047553).

Almost surely, 2^{405522525254401} is an apocalyptic number.

It is an amenable number.

405522525254401 is a deficient number, since it is larger than the sum of its proper divisors (1203330935811).

405522525254401 is a wasteful number, since it uses less digits than its factorization.

405522525254401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203330935810.

The product of its (nonzero) digits is 3200000, while the sum is 46.

The spelling of 405522525254401 in words is "four hundred five trillion, five hundred twenty-two billion, five hundred twenty-five million, two hundred fifty-four thousand, four hundred one".