78044053 has 2 divisors, whose sum is σ = 78044054. Its totient is φ = 78044052.

The previous prime is 78044051. The next prime is 78044159. The reversal of 78044053 is 35044087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 3359889 = 8642^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 78044053 - 2¹ = 78044051 is a prime.

Together with 78044051, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78044051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39022026 + 39022027.

It is an arithmetic number, because the mean of its divisors is an integer number (39022027).

Almost surely, 2^78044053 is an apocalyptic number.

It is an amenable number.

78044053 is a deficient number, since it is larger than the sum of its proper divisors (1).

78044053 is an equidigital number, since it uses as much as digits as its factorization.

78044053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 78044053 is about 8834.2545242935. The cubic root of 78044053 is about 427.3462903958.

The spelling of 78044053 in words is "seventy-eight million, forty-four thousand, fifty-three".