65255961 has 16 divisors (see below), whose sum is σ = 90050048. Its totient is φ = 41990400.

The previous prime is 65255921. The next prime is 65255963. The reversal of 65255961 is 16955256.

It is not a de Polignac number, because 65255961 - 2⁷ = 65255833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65255963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49665 + ... + 50961.

It is an arithmetic number, because the mean of its divisors is an integer number (5628128).

Almost surely, 2^65255961 is an apocalyptic number.

It is an amenable number.

65255961 is a deficient number, since it is larger than the sum of its proper divisors (24794087).

65255961 is a wasteful number, since it uses less digits than its factorization.

65255961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872.

The product of its digits is 81000, while the sum is 39.

The square root of 65255961 is about 8078.1161789120. The cubic root of 65255961 is about 402.5996533212.

The spelling of 65255961 in words is "sixty-five million, two hundred fifty-five thousand, nine hundred sixty-one".