7225537 has 8 divisors (see below), whose sum is σ = 7916832. Its totient is φ = 6540000.

The previous prime is 7225531. The next prime is 7225541. The reversal of 7225537 is 7355227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7225537 is a prime.

7225537 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7225499 and 7225508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7225531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1453 + ... + 4069.

It is an arithmetic number, because the mean of its divisors is an integer number (989604).

Almost surely, 2^7225537 is an apocalyptic number.

It is an amenable number.

7225537 is a deficient number, since it is larger than the sum of its proper divisors (691295).

7225537 is a wasteful number, since it uses less digits than its factorization.

7225537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its digits is 14700, while the sum is 31.

The square root of 7225537 is about 2688.0359000579. The cubic root of 7225537 is about 193.3259010883.

The spelling of 7225537 in words is "seven million, two hundred twenty-five thousand, five hundred thirty-seven".