71608225 has 12 divisors (see below), whose sum is σ = 95624956. Its totient is φ = 52879680.

The previous prime is 71608219. The next prime is 71608231. The reversal of 71608225 is 52280617.

It is an interprime number because it is at equal distance from previous prime (71608219) and next prime (71608231).

It can be written as a sum of positive squares in 6 ways, for example, as 1065024 + 70543201 = 1032^2 + 8399^2 .

It is not a de Polignac number, because 71608225 - 2³ = 71608217 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109842 + ... + 110491.

Almost surely, 2^71608225 is an apocalyptic number.

It is an amenable number.

71608225 is a deficient number, since it is larger than the sum of its proper divisors (24016731).

71608225 is a wasteful number, since it uses less digits than its factorization.

71608225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220356 (or 220351 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 71608225 is about 8462.1643212597. The cubic root of 71608225 is about 415.2608318205.

The spelling of 71608225 in words is "seventy-one million, six hundred eight thousand, two hundred twenty-five".