751582225 has 9 divisors (see below), whose sum is σ = 932131963. Its totient is φ = 601156120.

The previous prime is 751582219. The next prime is 751582229. The reversal of 751582225 is 522285157.

The square root of 751582225 is 27415.

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

It can be written as a sum of positive squares in only one way, i.e., 270569601 + 481012624 = 16449^2 + 21932^2 .

It is a de Polignac number, because none of the positive numbers 2^k-751582225 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (751582229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 134334 + ... + 139816.

Almost surely, 2^751582225 is an apocalyptic number.

751582225 is the 27415-th square number.

751582225 is the 13708-th centered octagonal number.

It is an amenable number.

751582225 is a deficient number, since it is larger than the sum of its proper divisors (180549738).

751582225 is an frugal number, since it uses more digits than its factorization.

751582225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10976 (or 5488 counting only the distinct ones).

The product of its digits is 56000, while the sum is 37.

The cubic root of 751582225 is about 909.1987573491.

The spelling of 751582225 in words is "seven hundred fifty-one million, five hundred eighty-two thousand, two hundred twenty-five".