747805225 has 12 divisors (see below), whose sum is σ = 931334860. Its totient is φ = 595627200.

The previous prime is 747805213. The next prime is 747805229. The reversal of 747805225 is 522508747.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 46826649 + 700978576 = 6843^2 + 26476^2 .

It is not a de Polignac number, because 747805225 - 2⁵ = 747805193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (747805229) 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 11 ways as a sum of consecutive naturals, for example, 59586 + ... + 71035.

Almost surely, 2^747805225 is an apocalyptic number.

It is an amenable number.

747805225 is a deficient number, since it is larger than the sum of its proper divisors (183529635).

747805225 is a wasteful number, since it uses less digits than its factorization.

747805225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130860 (or 130855 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 747805225 is about 27346.0275908586. The cubic root of 747805225 is about 907.6731703117.

The spelling of 747805225 in words is "seven hundred forty-seven million, eight hundred five thousand, two hundred twenty-five".