64571025 has 48 divisors (see below), whose sum is σ = 113653440. Its totient is φ = 32256000.

The previous prime is 64571011. The next prime is 64571027. The reversal of 64571025 is 52017546.

64571025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64571025 - 2¹⁶ = 64505489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64570983 and 64571001.

It is not an unprimeable number, because it can be changed into a prime (64571027) 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 47 ways as a sum of consecutive naturals, for example, 160825 + ... + 161225.

It is an arithmetic number, because the mean of its divisors is an integer number (2367780).

Almost surely, 2^64571025 is an apocalyptic number.

It is an amenable number.

64571025 is a deficient number, since it is larger than the sum of its proper divisors (49082415).

64571025 is a wasteful number, since it uses less digits than its factorization.

64571025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 541 counting only the distinct ones).

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

The square root of 64571025 is about 8035.6098088446. The cubic root of 64571025 is about 401.1861147696.

The spelling of 64571025 in words is "sixty-four million, five hundred seventy-one thousand, twenty-five".