64127525 has 36 divisors (see below), whose sum is σ = 100931040. Its totient is φ = 39967200.

The previous prime is 64127521. The next prime is 64127537. The reversal of 64127525 is 52572146.

It is not a de Polignac number, because 64127525 - 2² = 64127521 is a prime.

It is a super-2 number, since 2×64127525² = 8224678925251250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64127491 and 64127500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64127521) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 11096 + ... + 15854.

It is an arithmetic number, because the mean of its divisors is an integer number (2803640).

Almost surely, 2^64127525 is an apocalyptic number.

It is an amenable number.

64127525 is a deficient number, since it is larger than the sum of its proper divisors (36803515).

64127525 is a wasteful number, since it uses less digits than its factorization.

64127525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794 (or 4782 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 64127525 is about 8007.9663460831. The cubic root of 64127525 is about 400.2655008176.

The spelling of 64127525 in words is "sixty-four million, one hundred twenty-seven thousand, five hundred twenty-five".