4921225 has 12 divisors (see below), whose sum is σ = 6165900. Its totient is φ = 3896000.

The previous prime is 4921201. The next prime is 4921243. The reversal of 4921225 is 5221294.

It can be written as a sum of positive squares in 6 ways, for example, as 473344 + 4447881 = 688^2 + 2109^2 .

It is not a de Polignac number, because 4921225 - 2¹⁹ = 4396937 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4921225.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1551 + ... + 3499.

It is an arithmetic number, because the mean of its divisors is an integer number (513825).

Almost surely, 2^4921225 is an apocalyptic number.

It is an amenable number.

4921225 is a deficient number, since it is larger than the sum of its proper divisors (1244675).

4921225 is a wasteful number, since it uses less digits than its factorization.

4921225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060 (or 2055 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 4921225 is about 2218.3834204213. The cubic root of 4921225 is about 170.0948144678.

The spelling of 4921225 in words is "four million, nine hundred twenty-one thousand, two hundred twenty-five".