405541425 has 24 divisors (see below), whose sum is σ = 683152704. Its totient is φ = 212205760.

The previous prime is 405541417. The next prime is 405541429. The reversal of 405541425 is 524145504.

It is not a de Polignac number, because 405541425 - 2³ = 405541417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 405541392 and 405541401.

It is not an unprimeable number, because it can be changed into a prime (405541429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47037 + ... + 54986.

It is an arithmetic number, because the mean of its divisors is an integer number (28464696).

Almost surely, 2^405541425 is an apocalyptic number.

It is an amenable number.

405541425 is a deficient number, since it is larger than the sum of its proper divisors (277611279).

405541425 is a wasteful number, since it uses less digits than its factorization.

405541425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102089 (or 102084 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 405541425 is about 20138.0591170053. The cubic root of 405541425 is about 740.1931715078.

Adding to 405541425 its reverse (524145504), we get a palindrome (929686929).

The spelling of 405541425 in words is "four hundred five million, five hundred forty-one thousand, four hundred twenty-five".