78359051 has 2 divisors, whose sum is σ = 78359052. Its totient is φ = 78359050.

The previous prime is 78359027. The next prime is 78359107. The reversal of 78359051 is 15095387.

It is a weak prime.

It is an emirp because it is prime and its reverse (15095387) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78359051 is a prime.

It is a super-2 number, since 2×78359051² = 12280281747241202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 78358996 and 78359014.

It is not a weakly prime, because it can be changed into another prime (78355051) by changing a digit.

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 as a sum of consecutive naturals, namely, 39179525 + 39179526.

It is an arithmetic number, because the mean of its divisors is an integer number (39179526).

Almost surely, 2^78359051 is an apocalyptic number.

78359051 is a deficient number, since it is larger than the sum of its proper divisors (1).

78359051 is an equidigital number, since it uses as much as digits as its factorization.

78359051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 78359051 is about 8852.0647873815. The cubic root of 78359051 is about 427.9204640834.

The spelling of 78359051 in words is "seventy-eight million, three hundred fifty-nine thousand, fifty-one".