405325025 has 24 divisors (see below), whose sum is σ = 594217920. Its totient is φ = 268349760.

The previous prime is 405325007. The next prime is 405325087. The reversal of 405325025 is 520523504.

It is not a de Polignac number, because 405325025 - 2¹⁰ = 405324001 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 405324985 and 405325003.

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, 34859 + ... + 45008.

It is an arithmetic number, because the mean of its divisors is an integer number (24759080).

Almost surely, 2^405325025 is an apocalyptic number.

It is an amenable number.

405325025 is a deficient number, since it is larger than the sum of its proper divisors (188892895).

405325025 is a wasteful number, since it uses less digits than its factorization.

405325025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79913 (or 79908 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 405325025 is about 20132.6854890251. The cubic root of 405325025 is about 740.0614905075.

Adding to 405325025 its reverse (520523504), we get a palindrome (925848529).

The spelling of 405325025 in words is "four hundred five million, three hundred twenty-five thousand, twenty-five".