8405125 has 16 divisors (see below), whose sum is σ = 11044800. Its totient is φ = 6368400.

The previous prime is 8405101. The next prime is 8405149. The reversal of 8405125 is 5215048.

It is an interprime number because it is at equal distance from previous prime (8405101) and next prime (8405149).

It is not a de Polignac number, because 8405125 - 2⁷ = 8404997 is a prime.

It is a super-2 number, since 2×8405125² = 141292252531250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

8405125 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8405125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606 + ... + 4144.

It is an arithmetic number, because the mean of its divisors is an integer number (690300).

Almost surely, 2^8405125 is an apocalyptic number.

It is an amenable number.

8405125 is a deficient number, since it is larger than the sum of its proper divisors (2639675).

8405125 is a wasteful number, since it uses less digits than its factorization.

8405125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573 (or 3563 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 8405125 is about 2899.1593609183. The cubic root of 8405125 is about 203.3206044766.

It can be divided in two parts, 8405 and 125, that multiplied together give a square (1050625 = 1025²).

The spelling of 8405125 in words is "eight million, four hundred five thousand, one hundred twenty-five".