65255553 has 24 divisors (see below), whose sum is σ = 105225120. Its totient is φ = 38626560.

The previous prime is 65255551. The next prime is 65255563. The reversal of 65255553 is 35555256.

65255553 is a `hidden beast` number, since 6 + 52 + 55 + 553 = 666.

65255553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65255553 - 2¹ = 65255551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65255551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3408 + ... + 11921.

It is an arithmetic number, because the mean of its divisors is an integer number (4384380).

Almost surely, 2^65255553 is an apocalyptic number.

It is an amenable number.

65255553 is a deficient number, since it is larger than the sum of its proper divisors (39969567).

65255553 is a wasteful number, since it uses less digits than its factorization.

65255553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15389 (or 15386 counting only the distinct ones).

The product of its digits is 112500, while the sum is 36.

The square root of 65255553 is about 8078.0909254600. The cubic root of 65255553 is about 402.5988142612.

The spelling of 65255553 in words is "sixty-five million, two hundred fifty-five thousand, five hundred fifty-three".