79563251 has 2 divisors, whose sum is σ = 79563252. Its totient is φ = 79563250.

The previous prime is 79563221. The next prime is 79563293. The reversal of 79563251 is 15236597.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15236597) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79563251 is a prime.

It is not a weakly prime, because it can be changed into another prime (79563221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39781625 + 39781626.

It is an arithmetic number, because the mean of its divisors is an integer number (39781626).

Almost surely, 2^79563251 is an apocalyptic number.

79563251 is a deficient number, since it is larger than the sum of its proper divisors (1).

79563251 is an equidigital number, since it uses as much as digits as its factorization.

79563251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 79563251 is about 8919.8234848006. The cubic root of 79563251 is about 430.1013840624.

It can be divided in two parts, 795 and 63251, that added together give a palindrome (64046).

The spelling of 79563251 in words is "seventy-nine million, five hundred sixty-three thousand, two hundred fifty-one".