7225516 has 6 divisors (see below), whose sum is σ = 12644660. Its totient is φ = 3612756.

The previous prime is 7225513. The next prime is 7225531. The reversal of 7225516 is 6155227.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7225513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903186 + ... + 903193.

Almost surely, 2^7225516 is an apocalyptic number.

It is an amenable number.

7225516 is a deficient number, since it is larger than the sum of its proper divisors (5419144).

7225516 is a wasteful number, since it uses less digits than its factorization.

7225516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806383 (or 1806381 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 7225516 is about 2688.0319938572. The cubic root of 7225516 is about 193.3257137967.

The spelling of 7225516 in words is "seven million, two hundred twenty-five thousand, five hundred sixteen".