65255015 has 24 divisors (see below), whose sum is σ = 92216880. Its totient is φ = 44193408.

The previous prime is 65254991. The next prime is 65255023. The reversal of 65255015 is 51055256.

It is not a de Polignac number, because 65255015 - 2²⁴ = 48477799 is a prime.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 18731 + ... + 21939.

It is an arithmetic number, because the mean of its divisors is an integer number (3842370).

Almost surely, 2^65255015 is an apocalyptic number.

65255015 is a deficient number, since it is larger than the sum of its proper divisors (26961865).

65255015 is a wasteful number, since it uses less digits than its factorization.

65255015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311 (or 3304 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 65255015 is about 8078.0576254444. The cubic root of 65255015 is about 402.5977078483.

The spelling of 65255015 in words is "sixty-five million, two hundred fifty-five thousand, fifteen".