71310025 has 6 divisors (see below), whose sum is σ = 88424462. Its totient is φ = 57048000.

The previous prime is 71310011. The next prime is 71310067. The reversal of 71310025 is 52001317.

It can be written as a sum of positive squares in 3 ways, for example, as 968256 + 70341769 = 984^2 + 8387^2 .

It is not a de Polignac number, because 71310025 - 2⁵ = 71309993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71309984 and 71310011.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1426176 + ... + 1426225.

Almost surely, 2^71310025 is an apocalyptic number.

It is an amenable number.

71310025 is a deficient number, since it is larger than the sum of its proper divisors (17114437).

71310025 is a wasteful number, since it uses less digits than its factorization.

71310025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852411 (or 2852406 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 71310025 is about 8444.5263336673. The cubic root of 71310025 is about 414.6836026479.

The spelling of 71310025 in words is "seventy-one million, three hundred ten thousand, twenty-five".