6451225 has 12 divisors (see below), whose sum is σ = 8727120. Its totient is φ = 4691600.

The previous prime is 6451223. The next prime is 6451231. The reversal of 6451225 is 5221546.

It is not a de Polignac number, because 6451225 - 2¹ = 6451223 is a prime.

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

6451225 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6451225.

It is not an unprimeable number, because it can be changed into a prime (6451223) 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, 11455 + ... + 12004.

It is an arithmetic number, because the mean of its divisors is an integer number (727260).

Almost surely, 2^6451225 is an apocalyptic number.

It is an amenable number.

6451225 is a deficient number, since it is larger than the sum of its proper divisors (2275895).

6451225 is a wasteful number, since it uses less digits than its factorization.

6451225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23480 (or 23475 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 6451225 is about 2539.9261800296. The cubic root of 6451225 is about 186.1575821844.

The spelling of 6451225 in words is "six million, four hundred fifty-one thousand, two hundred twenty-five".