64525115 has 16 divisors (see below), whose sum is σ = 83537568. Its totient is φ = 47663616.

The previous prime is 64525093. The next prime is 64525117. The reversal of 64525115 is 51152546.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64525115 - 2¹⁸ = 64262971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64525117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2657 + ... + 11666.

It is an arithmetic number, because the mean of its divisors is an integer number (5221098).

Almost surely, 2^64525115 is an apocalyptic number.

64525115 is a deficient number, since it is larger than the sum of its proper divisors (19012453).

64525115 is a wasteful number, since it uses less digits than its factorization.

64525115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14398.

The product of its digits is 6000, while the sum is 29.

The square root of 64525115 is about 8032.7526415296. The cubic root of 64525115 is about 401.0910111147.

The spelling of 64525115 in words is "sixty-four million, five hundred twenty-five thousand, one hundred fifteen".