6405125 has 8 divisors (see below), whose sum is σ = 7993752. Its totient is φ = 5124000.

The previous prime is 6405101. The next prime is 6405131. The reversal of 6405125 is 5215046.

It can be written as a sum of positive squares in 4 ways, for example, as 417316 + 5987809 = 646^2 + 2447^2 .

It is not a de Polignac number, because 6405125 - 2¹² = 6401029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6405125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25496 + ... + 25745.

It is an arithmetic number, because the mean of its divisors is an integer number (999219).

Almost surely, 2^6405125 is an apocalyptic number.

It is an amenable number.

6405125 is a deficient number, since it is larger than the sum of its proper divisors (1588627).

6405125 is an equidigital number, since it uses as much as digits as its factorization.

6405125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51256 (or 51246 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 6405125 is about 2530.8348424976. The cubic root of 6405125 is about 185.7130987526.

The spelling of 6405125 in words is "six million, four hundred five thousand, one hundred twenty-five".