7220325 has 48 divisors (see below), whose sum is σ = 14463360. Its totient is φ = 3102720.

The previous prime is 7220299. The next prime is 7220347. The reversal of 7220325 is 5230227.

It is not a de Polignac number, because 7220325 - 2⁶ = 7220261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 8521 + ... + 9329.

It is an arithmetic number, because the mean of its divisors is an integer number (301320).

Almost surely, 2^7220325 is an apocalyptic number.

7220325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7220325 is an abundant number, since it is smaller than the sum of its proper divisors (7243035).

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

7220325 is a wasteful number, since it uses less digits than its factorization.

7220325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 7220325 is about 2687.0662440662. The cubic root of 7220325 is about 193.2794059527.

The spelling of 7220325 in words is "seven million, two hundred twenty thousand, three hundred twenty-five".