64227525 has 24 divisors (see below), whose sum is σ = 108784704. Its totient is φ = 33417600.

The previous prime is 64227503. The next prime is 64227533. The reversal of 64227525 is 52572246.

It is not a de Polignac number, because 64227525 - 2¹¹ = 64225477 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7369 + ... + 13518.

It is an arithmetic number, because the mean of its divisors is an integer number (4532696).

Almost surely, 2^64227525 is an apocalyptic number.

It is an amenable number.

64227525 is a deficient number, since it is larger than the sum of its proper divisors (44557179).

64227525 is a wasteful number, since it uses less digits than its factorization.

64227525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20941 (or 20936 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 64227525 is about 8014.2076963353. The cubic root of 64227525 is about 400.4734498088.

The spelling of 64227525 in words is "sixty-four million, two hundred twenty-seven thousand, five hundred twenty-five".