680134550 has 24 divisors (see below), whose sum is σ = 1267218000. Its totient is φ = 271587680.

The previous prime is 680134549. The next prime is 680134561. The reversal of 680134550 is 55431086.

It is a happy number.

It is a super-2 number, since 2×680134550² = 925166012207405000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18596 + ... + 41304.

It is an arithmetic number, because the mean of its divisors is an integer number (52800750).

Almost surely, 2^680134550 is an apocalyptic number.

680134550 is a deficient number, since it is larger than the sum of its proper divisors (587083450).

680134550 is a wasteful number, since it uses less digits than its factorization.

680134550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23320 (or 23315 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 680134550 is about 26079.3893716858. The cubic root of 680134550 is about 879.4239299628.

The spelling of 680134550 in words is "six hundred eighty million, one hundred thirty-four thousand, five hundred fifty".