716321251 has 4 divisors (see below), whose sum is σ = 717161872. Its totient is φ = 715480632.

The previous prime is 716321173. The next prime is 716321293. The reversal of 716321251 is 152123617.

It is a happy number.

716321251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152123617 = 3323 ⋅45779.

It is a cyclic number.

It is not a de Polignac number, because 716321251 - 2¹¹ = 716319203 is a prime.

It is a super-2 number, since 2×716321251² = 1026232269268410002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716321651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419031 + ... + 420736.

It is an arithmetic number, because the mean of its divisors is an integer number (179290468).

Almost surely, 2^716321251 is an apocalyptic number.

716321251 is a deficient number, since it is larger than the sum of its proper divisors (840621).

716321251 is an equidigital number, since it uses as much as digits as its factorization.

716321251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840620.

The product of its digits is 2520, while the sum is 28.

The square root of 716321251 is about 26764.1785041125. The cubic root of 716321251 is about 894.7518640475.

Adding to 716321251 its reverse (152123617), we get a palindrome (868444868).

The spelling of 716321251 in words is "seven hundred sixteen million, three hundred twenty-one thousand, two hundred fifty-one".