71252064 has 72 divisors (see below), whose sum is σ = 218220912. Its totient is φ = 21922560.

The previous prime is 71252063. The next prime is 71252113. The reversal of 71252064 is 46025217.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71252063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5772 + ... + 13259.

It is an arithmetic number, because the mean of its divisors is an integer number (3030846).

Almost surely, 2^71252064 is an apocalyptic number.

It is an amenable number.

71252064 is an abundant number, since it is smaller than the sum of its proper divisors (146968848).

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

71252064 is a wasteful number, since it uses less digits than its factorization.

71252064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19060 (or 19049 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 71252064 is about 8441.0937679900. The cubic root of 71252064 is about 414.5712201731.

The spelling of 71252064 in words is "seventy-one million, two hundred fifty-two thousand, sixty-four".