8405025 has 12 divisors (see below), whose sum is σ = 13896432. Its totient is φ = 4482640.

The previous prime is 8405003. The next prime is 8405029. The reversal of 8405025 is 5205048.

It is not a de Polignac number, because 8405025 - 2⁵ = 8404993 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8404986 and 8405004.

It is not an unprimeable number, because it can be changed into a prime (8405029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55959 + ... + 56108.

It is an arithmetic number, because the mean of its divisors is an integer number (1158036).

Almost surely, 2^8405025 is an apocalyptic number.

It is an amenable number.

8405025 is a deficient number, since it is larger than the sum of its proper divisors (5491407).

8405025 is a wasteful number, since it uses less digits than its factorization.

8405025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112080 (or 112075 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 8405025 is about 2899.1421144884. The cubic root of 8405025 is about 203.3197981375.

The spelling of 8405025 in words is "eight million, four hundred five thousand, twenty-five".