71425565 has 8 divisors (see below), whose sum is σ = 85847040. Its totient is φ = 57049552.

The previous prime is 71425561. The next prime is 71425583. The reversal of 71425565 is 56552417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71425565 - 2² = 71425561 is a prime.

It is a super-2 number, since 2×71425565² = 10203222671138450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71425561) 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 7 ways as a sum of consecutive naturals, for example, 7805 + ... + 14274.

It is an arithmetic number, because the mean of its divisors is an integer number (10730880).

Almost surely, 2^71425565 is an apocalyptic number.

It is an amenable number.

71425565 is a deficient number, since it is larger than the sum of its proper divisors (14421475).

71425565 is a wasteful number, since it uses less digits than its factorization.

71425565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22731.

The product of its digits is 42000, while the sum is 35.

The square root of 71425565 is about 8451.3646827007. The cubic root of 71425565 is about 414.9074453683.

The spelling of 71425565 in words is "seventy-one million, four hundred twenty-five thousand, five hundred sixty-five".