911900854225 has 27 divisors (see below), whose sum is σ = 1136152627281. Its totient is φ = 726056179200.

The previous prime is 911900854201. The next prime is 911900854283. The reversal of 911900854225 is 522458009119.

It is a happy number.

The square root of 911900854225 is 954935.

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 257478100929 + 654422753296 = 507423^2 + 808964^2 .

It is not a de Polignac number, because 911900854225 - 2⁷ = 911900854097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1580417137 + ... + 1580417713.

Almost surely, 2^911900854225 is an apocalyptic number.

911900854225 is the 954935-th square number.

911900854225 is the 477468-th centered octagonal number.

It is an amenable number.

911900854225 is a deficient number, since it is larger than the sum of its proper divisors (224251773056).

911900854225 is an frugal number, since it uses more digits than its factorization.

911900854225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 911900854225 in words is "nine hundred eleven billion, nine hundred million, eight hundred fifty-four thousand, two hundred twenty-five".