80756251 has 4 divisors (see below), whose sum is σ = 85006600. Its totient is φ = 76505904.

The previous prime is 80756201. The next prime is 80756281. The reversal of 80756251 is 15265708.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80756251 - 2¹¹ = 80754203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80756201) 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 3 ways as a sum of consecutive naturals, for example, 2125146 + ... + 2125183.

It is an arithmetic number, because the mean of its divisors is an integer number (21251650).

Almost surely, 2^80756251 is an apocalyptic number.

80756251 is a deficient number, since it is larger than the sum of its proper divisors (4250349).

80756251 is a wasteful number, since it uses less digits than its factorization.

80756251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250348.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 80756251 is about 8986.4481860188. The cubic root of 80756251 is about 432.2404265099.

The spelling of 80756251 in words is "eighty million, seven hundred fifty-six thousand, two hundred fifty-one".