71206625 has 32 divisors (see below), whose sum is σ = 107557632. Its totient is φ = 45945600.

The previous prime is 71206621. The next prime is 71206649. The reversal of 71206625 is 52660217.

It is not a de Polignac number, because 71206625 - 2² = 71206621 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71206621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12482 + ... + 17268.

It is an arithmetic number, because the mean of its divisors is an integer number (3361176).

Almost surely, 2^71206625 is an apocalyptic number.

It is an amenable number.

71206625 is a deficient number, since it is larger than the sum of its proper divisors (36351007).

71206625 is a wasteful number, since it uses less digits than its factorization.

71206625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4826 (or 4816 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 71206625 is about 8438.4018036593. The cubic root of 71206625 is about 414.4830743873.

The spelling of 71206625 in words is "seventy-one million, two hundred six thousand, six hundred twenty-five".