71323714225 has 27 divisors (see below), whose sum is σ = 91439454699. Its totient is φ = 55186311600.

The previous prime is 71323714199. The next prime is 71323714271. The reversal of 71323714225 is 52241732317.

The square root of 71323714225 is 267065.

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., 25676537121 + 45647177104 = 160239^2 + 213652^2 .

It is not a de Polignac number, because 71323714225 - 2¹⁷ = 71323583153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 41394214 + ... + 41395936.

Almost surely, 2^71323714225 is an apocalyptic number.

71323714225 is the 267065-th square number.

71323714225 is the 133533-rd centered octagonal number.

It is an amenable number.

71323714225 is a deficient number, since it is larger than the sum of its proper divisors (20115740474).

71323714225 is an frugal number, since it uses more digits than its factorization.

71323714225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518 (or 1759 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The spelling of 71323714225 in words is "seventy-one billion, three hundred twenty-three million, seven hundred fourteen thousand, two hundred twenty-five".