71625064 has 48 divisors (see below), whose sum is σ = 158055300. Its totient is φ = 30336768.

The previous prime is 71625061. The next prime is 71625089. The reversal of 71625064 is 46052617.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69856164 + 1768900 = 8358^2 + 1330^2 .

It is not an unprimeable number, because it can be changed into a prime (71625061) by changing a digit.

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, 33862 + ... + 35914.

Almost surely, 2^71625064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71625064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79027650).

71625064 is an abundant number, since it is smaller than the sum of its proper divisors (86430236).

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

71625064 is a wasteful number, since it uses less digits than its factorization.

71625064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 71625064 is about 8463.1592210002. The cubic root of 71625064 is about 415.2933794276.

The spelling of 71625064 in words is "seventy-one million, six hundred twenty-five thousand, sixty-four".