6428025 has 48 divisors (see below), whose sum is σ = 12052800. Its totient is φ = 3358080.

The previous prime is 6428011. The next prime is 6428029. The reversal of 6428025 is 5208246.

It is not a de Polignac number, because 6428025 - 2¹² = 6423929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 6428025.

It is not an unprimeable number, because it can be changed into a prime (6428029) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 60022 + ... + 60128.

It is an arithmetic number, because the mean of its divisors is an integer number (251100).

Almost surely, 2^6428025 is an apocalyptic number.

It is an amenable number.

6428025 is a deficient number, since it is larger than the sum of its proper divisors (5624775).

6428025 is a wasteful number, since it uses less digits than its factorization.

6428025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 6428025 is about 2535.3550047281. The cubic root of 6428025 is about 185.9341598393.

The spelling of 6428025 in words is "six million, four hundred twenty-eight thousand, twenty-five".