4220125 has 48 divisors (see below), whose sum is σ = 6722352. Its totient is φ = 2620800.

The previous prime is 4220081. The next prime is 4220137. The reversal of 4220125 is 5210224.

It can be written as a sum of positive squares in 8 ways, for example, as 1695204 + 2524921 = 1302^2 + 1589^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4220125 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4220099 and 4220108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79599 + ... + 79651.

It is an arithmetic number, because the mean of its divisors is an integer number (140049).

Almost surely, 2^4220125 is an apocalyptic number.

It is an amenable number.

4220125 is a deficient number, since it is larger than the sum of its proper divisors (2502227).

4220125 is a wasteful number, since it uses less digits than its factorization.

4220125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4220125 is about 2054.2942827161. The cubic root of 4220125 is about 161.6001544986.

Adding to 4220125 its reverse (5210224), we get a palindrome (9430349).

Subtracting 4220125 from its reverse (5210224), we obtain a palindrome (990099).

The spelling of 4220125 in words is "four million, two hundred twenty thousand, one hundred twenty-five".