4225520 has 80 divisors (see below), whose sum is σ = 11249280. Its totient is φ = 1462272.

The previous prime is 4225519. The next prime is 4225523. The reversal of 4225520 is 255224.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4225492 and 4225501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4225523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17561 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (140616).

Almost surely, 2^4225520 is an apocalyptic number.

4225520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4225520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5624640).

4225520 is an abundant number, since it is smaller than the sum of its proper divisors (7023760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4225520 is a wasteful number, since it uses less digits than its factorization.

4225520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 4225520 is about 2055.6069663241. The cubic root of 4225520 is about 161.6689882875.

It can be divided in two parts, 4225 and 520, that multiplied together give a cube (2197000 = 130³).

The spelling of 4225520 in words is "four million, two hundred twenty-five thousand, five hundred twenty".