680225251 has 4 divisors (see below), whose sum is σ = 716026600. Its totient is φ = 644423904.

The previous prime is 680225209. The next prime is 680225261. The reversal of 680225251 is 152522086.

680225251 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: 152522086 = 2 ⋅76261043.

It is a cyclic number.

It is not a de Polignac number, because 680225251 - 2⁹ = 680224739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680225201) 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, 17900646 + ... + 17900683.

It is an arithmetic number, because the mean of its divisors is an integer number (179006650).

Almost surely, 2^680225251 is an apocalyptic number.

680225251 is a deficient number, since it is larger than the sum of its proper divisors (35801349).

680225251 is a wasteful number, since it uses less digits than its factorization.

680225251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35801348.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 680225251 is about 26081.1282539694. The cubic root of 680225251 is about 879.4630207987.

The spelling of 680225251 in words is "six hundred eighty million, two hundred twenty-five thousand, two hundred fifty-one".