71205425 has 12 divisors (see below), whose sum is σ = 88469040. Its totient is φ = 56851920.

The previous prime is 71205371. The next prime is 71205457. The reversal of 71205425 is 52450217.

It is not a de Polignac number, because 71205425 - 2¹² = 71201329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71205394 and 71205403.

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, 11546 + ... + 16604.

It is an arithmetic number, because the mean of its divisors is an integer number (7372420).

Almost surely, 2^71205425 is an apocalyptic number.

It is an amenable number.

71205425 is a deficient number, since it is larger than the sum of its proper divisors (17263615).

71205425 is a wasteful number, since it uses less digits than its factorization.

71205425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632 (or 5627 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 71205425 is about 8438.3306998482. The cubic root of 71205425 is about 414.4807460343.

The spelling of 71205425 in words is "seventy-one million, two hundred five thousand, four hundred twenty-five".