79365551 has 2 divisors, whose sum is σ = 79365552. Its totient is φ = 79365550.

The previous prime is 79365523. The next prime is 79365553. The reversal of 79365551 is 15556397.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79365551 - 2¹⁸ = 79103407 is a prime.

Together with 79365553, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79365499 and 79365508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79365553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39682775 + 39682776.

It is an arithmetic number, because the mean of its divisors is an integer number (39682776).

Almost surely, 2^79365551 is an apocalyptic number.

79365551 is a deficient number, since it is larger than the sum of its proper divisors (1).

79365551 is an equidigital number, since it uses as much as digits as its factorization.

79365551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141750, while the sum is 41.

The square root of 79365551 is about 8908.7345341524. The cubic root of 79365551 is about 429.7448477270.

The spelling of 79365551 in words is "seventy-nine million, three hundred sixty-five thousand, five hundred fifty-one".