80053965 has 12 divisors (see below), whose sum is σ = 138760284. Its totient is φ = 42695424.

The previous prime is 80053937. The next prime is 80053999. The reversal of 80053965 is 56935008.

It can be written as a sum of positive squares in 2 ways, for example, as 43837641 + 36216324 = 6621^2 + 6018^2 .

It is not a de Polignac number, because 80053965 - 2⁵ = 80053933 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 889444 + ... + 889533.

It is an arithmetic number, because the mean of its divisors is an integer number (11563357).

Almost surely, 2^80053965 is an apocalyptic number.

It is an amenable number.

80053965 is a deficient number, since it is larger than the sum of its proper divisors (58706319).

80053965 is a wasteful number, since it uses less digits than its factorization.

80053965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778988 (or 1778985 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 80053965 is about 8947.2881366367. The cubic root of 80053965 is about 430.9838029525.

It can be divided in two parts, 80053 and 965, that added together give a palindrome (81018).

The spelling of 80053965 in words is "eighty million, fifty-three thousand, nine hundred sixty-five".