64655275 has 12 divisors (see below), whose sum is σ = 80532792. Its totient is φ = 51491840.

The previous prime is 64655249. The next prime is 64655281. The reversal of 64655275 is 57255646.

It is not a de Polignac number, because 64655275 - 2⁷ = 64655147 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 22 + ... + 11371.

It is an arithmetic number, because the mean of its divisors is an integer number (6711066).

Almost surely, 2^64655275 is an apocalyptic number.

64655275 is a deficient number, since it is larger than the sum of its proper divisors (15877517).

64655275 is a wasteful number, since it uses less digits than its factorization.

64655275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11630 (or 11625 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 64655275 is about 8040.8503903505. The cubic root of 64655275 is about 401.3605234433.

The spelling of 64655275 in words is "sixty-four million, six hundred fifty-five thousand, two hundred seventy-five".