80651350 has 48 divisors (see below), whose sum is σ = 162989568. Its totient is φ = 29514240.

The previous prime is 80651339. The next prime is 80651353. The reversal of 80651350 is 5315608.

80651350 is a nontrivial binomial coefficient, being equal to C(12701, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80651353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82062 + ... + 83038.

It is an arithmetic number, because the mean of its divisors is an integer number (3395616).

Almost surely, 2^80651350 is an apocalyptic number.

80651350 is the 12700-th triangular number.

80651350 is the 4234-th centered nonagonal number.

80651350 is an abundant number, since it is smaller than the sum of its proper divisors (82338218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80651350 is a wasteful number, since it uses less digits than its factorization.

80651350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 80651350 is about 8980.6096675003. The cubic root of 80651350 is about 432.0531877528.

Adding to 80651350 its reverse (5315608), we get a palindrome (85966958).

The spelling of 80651350 in words is "eighty million, six hundred fifty-one thousand, three hundred fifty".