71425506 has 8 divisors (see below), whose sum is σ = 142851024. Its totient is φ = 23808500.

The previous prime is 71425499. The next prime is 71425507. The reversal of 71425506 is 60552417.

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

71425506 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (71425507) 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 3 ways as a sum of consecutive naturals, for example, 5952120 + ... + 5952131.

It is an arithmetic number, because the mean of its divisors is an integer number (17856378).

Almost surely, 2^71425506 is an apocalyptic number.

71425506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71425506 is a wasteful number, since it uses less digits than its factorization.

71425506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11904256.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 71425506 is about 8451.3611921394. The cubic root of 71425506 is about 414.9073311256.

The spelling of 71425506 in words is "seventy-one million, four hundred twenty-five thousand, five hundred six".