405525445952 has 28 divisors (see below), whose sum is σ = 877870427136. Its totient is φ = 184329747840.

The previous prime is 405525445939. The next prime is 405525445957. The reversal of 405525445952 is 259544525504.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 405525445952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405525445957) 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, 288014528 + ... + 288015935.

Almost surely, 2^405525445952 is an apocalyptic number.

It is an amenable number.

405525445952 is an abundant number, since it is smaller than the sum of its proper divisors (472344981184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405525445952 is a wasteful number, since it uses less digits than its factorization.

405525445952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576030486 (or 576030476 counting only the distinct ones).

The product of its (nonzero) digits is 7200000, while the sum is 50.

The spelling of 405525445952 in words is "four hundred five billion, five hundred twenty-five million, four hundred forty-five thousand, nine hundred fifty-two".