65625255 has 32 divisors (see below), whose sum is σ = 117846720. Its totient is φ = 34646400.

The previous prime is 65625251. The next prime is 65625257. The reversal of 65625255 is 55252656.

65625255 is a `hidden beast` number, since 6 + 5 + 625 + 25 + 5 = 666.

It is not a de Polignac number, because 65625255 - 2² = 65625251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65625251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11229 + ... + 16041.

It is an arithmetic number, because the mean of its divisors is an integer number (3682710).

Almost surely, 2^65625255 is an apocalyptic number.

65625255 is a deficient number, since it is larger than the sum of its proper divisors (52221465).

65625255 is a wasteful number, since it uses less digits than its factorization.

65625255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928 (or 4922 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 65625255 is about 8100.9416119362. The cubic root of 65625255 is about 403.3576839490.

The spelling of 65625255 in words is "sixty-five million, six hundred twenty-five thousand, two hundred fifty-five".