7211131476025 has 9 divisors (see below), whose sum is σ = 8941819679503. Its totient is φ = 5768894439400.

The previous prime is 7211131476023. The next prime is 7211131476037. The reversal of 7211131476025 is 5206741311127.

The square root of 7211131476025 is 2685355.

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., 2596007331369 + 4615124144656 = 1611213^2 + 2148284^2 .

It is not a de Polignac number, because 7211131476025 - 2¹ = 7211131476023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7211131476023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13158240 + ... + 13695310.

Almost surely, 2^{7211131476025} is an apocalyptic number.

7211131476025 is the 2685355-th square number.

7211131476025 is the 1342678-th centered octagonal number.

It is an amenable number.

7211131476025 is a deficient number, since it is larger than the sum of its proper divisors (1730688203478).

7211131476025 is an frugal number, since it uses more digits than its factorization.

7211131476025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074152 (or 537076 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 7211131476025 in words is "seven trillion, two hundred eleven billion, one hundred thirty-one million, four hundred seventy-six thousand, twenty-five".