64125655 has 8 divisors (see below), whose sum is σ = 83946384. Its totient is φ = 46636800.

The previous prime is 64125653. The next prime is 64125661. The reversal of 64125655 is 55652146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64125655 - 2¹ = 64125653 is a prime.

It is a super-2 number, since 2×64125655² = 8224199258358050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64125655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64125653) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 582906 + ... + 583015.

It is an arithmetic number, because the mean of its divisors is an integer number (10493298).

Almost surely, 2^64125655 is an apocalyptic number.

64125655 is a deficient number, since it is larger than the sum of its proper divisors (19820729).

64125655 is a wasteful number, since it uses less digits than its factorization.

64125655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165937.

The product of its digits is 36000, while the sum is 34.

The square root of 64125655 is about 8007.8495864995. The cubic root of 64125655 is about 400.2616101131.

The spelling of 64125655 in words is "sixty-four million, one hundred twenty-five thousand, six hundred fifty-five".