405024025 has 24 divisors (see below), whose sum is σ = 575231040. Its totient is φ = 277124160.

The previous prime is 405024001. The next prime is 405024071. The reversal of 405024025 is 520420504.

It is not a de Polignac number, because 405024025 - 2¹⁹ = 404499737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405023987 and 405024005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86802 + ... + 91348.

It is an arithmetic number, because the mean of its divisors is an integer number (23967960).

Almost surely, 2^405024025 is an apocalyptic number.

It is an amenable number.

405024025 is a deficient number, since it is larger than the sum of its proper divisors (170207015).

405024025 is a wasteful number, since it uses less digits than its factorization.

405024025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073 (or 5068 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 405024025 is about 20125.2086945701. The cubic root of 405024025 is about 739.8782518235.

Adding to 405024025 its reverse (520420504), we get a palindrome (925444529).

The spelling of 405024025 in words is "four hundred five million, twenty-four thousand, twenty-five".