78039053 has 2 divisors, whose sum is σ = 78039054. Its totient is φ = 78039052.

The previous prime is 78039041. The next prime is 78039077. The reversal of 78039053 is 35093087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67683529 + 10355524 = 8227^2 + 3218^2 .

It is a cyclic number.

It is not a de Polignac number, because 78039053 - 2⁴ = 78039037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78039553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39019526 + 39019527.

It is an arithmetic number, because the mean of its divisors is an integer number (39019527).

Almost surely, 2^78039053 is an apocalyptic number.

It is an amenable number.

78039053 is a deficient number, since it is larger than the sum of its proper divisors (1).

78039053 is an equidigital number, since it uses as much as digits as its factorization.

78039053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 78039053 is about 8833.9715304047. The cubic root of 78039053 is about 427.3371640242.

The spelling of 78039053 in words is "seventy-eight million, thirty-nine thousand, fifty-three".