7756225 has 9 divisors (see below), whose sum is σ = 9635017. Its totient is φ = 6193840.

The previous prime is 7756223. The next prime is 7756241. The reversal of 7756225 is 5226577.

It is a happy number.

The square root of 7756225 is 2785.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2666689 + 5089536 = 1633^2 + 2256^2 .

It is not a de Polignac number, because 7756225 - 2¹ = 7756223 is a prime.

It is a Duffinian number.

7756225 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7756223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13647 + ... + 14203.

Almost surely, 2^7756225 is an apocalyptic number.

7756225 is the 2785-th square number.

7756225 is the 1393-rd centered octagonal number.

It is an amenable number.

7756225 is a deficient number, since it is larger than the sum of its proper divisors (1878792).

7756225 is an frugal number, since it uses more digits than its factorization.

7756225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 562 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The cubic root of 7756225 is about 197.9475509821.

The spelling of 7756225 in words is "seven million, seven hundred fifty-six thousand, two hundred twenty-five".