65255143 has 4 divisors (see below), whose sum is σ = 65318400. Its totient is φ = 65191888.

The previous prime is 65255111. The next prime is 65255147. The reversal of 65255143 is 34155256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65255143 - 2⁵ = 65255111 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65255147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30055 + ... + 32152.

It is an arithmetic number, because the mean of its divisors is an integer number (16329600).

Almost surely, 2^65255143 is an apocalyptic number.

65255143 is a deficient number, since it is larger than the sum of its proper divisors (63257).

65255143 is a wasteful number, since it uses less digits than its factorization.

65255143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63256.

The product of its digits is 18000, while the sum is 31.

The square root of 65255143 is about 8078.0655481371. The cubic root of 65255143 is about 402.5979710846.

The spelling of 65255143 in words is "sixty-five million, two hundred fifty-five thousand, one hundred forty-three".