680276551 has 16 divisors (see below), whose sum is σ = 736968960. Its totient is φ = 625821120.

The previous prime is 680276507. The next prime is 680276567. The reversal of 680276551 is 155672086.

It is a cyclic number.

It is not a de Polignac number, because 680276551 - 2¹⁵ = 680243783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680276501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174910 + ... + 178756.

It is an arithmetic number, because the mean of its divisors is an integer number (46060560).

Almost surely, 2^680276551 is an apocalyptic number.

680276551 is a deficient number, since it is larger than the sum of its proper divisors (56692409).

680276551 is a wasteful number, since it uses less digits than its factorization.

680276551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 680276551 is about 26082.1117051515. Note that the first 3 decimals coincide. The cubic root of 680276551 is about 879.4851288278.

The spelling of 680276551 in words is "six hundred eighty million, two hundred seventy-six thousand, five hundred fifty-one".