64461525 has 24 divisors (see below), whose sum is σ = 111213120. Its totient is φ = 32883840.

The previous prime is 64461503. The next prime is 64461541. The reversal of 64461525 is 52516446.

It is not a de Polignac number, because 64461525 - 2⁸ = 64461269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16960 + ... + 20409.

It is an arithmetic number, because the mean of its divisors is an integer number (4633880).

Almost surely, 2^64461525 is an apocalyptic number.

It is an amenable number.

64461525 is a deficient number, since it is larger than the sum of its proper divisors (46751595).

64461525 is a wasteful number, since it uses less digits than its factorization.

64461525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37405 (or 37400 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 64461525 is about 8028.7934959121. The cubic root of 64461525 is about 400.9592083762.

The spelling of 64461525 in words is "sixty-four million, four hundred sixty-one thousand, five hundred twenty-five".