4721425 has 6 divisors (see below), whose sum is σ = 5854598. Its totient is φ = 3777120.

The previous prime is 4721419. The next prime is 4721441. The reversal of 4721425 is 5241274.

It can be written as a sum of positive squares in 3 ways, for example, as 222784 + 4498641 = 472^2 + 2121^2 .

It is not a de Polignac number, because 4721425 - 2⁹ = 4720913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 188857 = 4721425 / (4 + 7 + 2 + 1 + 4 + 2 + 5).

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 4721425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94404 + ... + 94453.

Almost surely, 2^4721425 is an apocalyptic number.

It is an amenable number.

4721425 is a deficient number, since it is larger than the sum of its proper divisors (1133173).

4721425 is a wasteful number, since it uses less digits than its factorization.

4721425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188867 (or 188862 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 4721425 is about 2172.8840281985. The cubic root of 4721425 is about 167.7610098621.

Adding to 4721425 its reverse (5241274), we get a palindrome (9962699).

The spelling of 4721425 in words is "four million, seven hundred twenty-one thousand, four hundred twenty-five".