7216825 has 48 divisors (see below), whose sum is σ = 11713536. Its totient is φ = 4276800.

The previous prime is 7216801. The next prime is 7216837. The reversal of 7216825 is 5286127.

It is not a de Polignac number, because 7216825 - 2¹⁵ = 7184057 is a prime.

It is a Duffinian number.

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, 44194 + ... + 44356.

It is an arithmetic number, because the mean of its divisors is an integer number (244032).

Almost surely, 2^7216825 is an apocalyptic number.

It is an amenable number.

7216825 is a deficient number, since it is larger than the sum of its proper divisors (4496711).

7216825 is a wasteful number, since it uses less digits than its factorization.

7216825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 209 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 7216825 is about 2686.4148972190. The cubic root of 7216825 is about 193.2481706433.

The spelling of 7216825 in words is "seven million, two hundred sixteen thousand, eight hundred twenty-five".