80276257 has 4 divisors (see below), whose sum is σ = 80354560. Its totient is φ = 80197956.

The previous prime is 80276249. The next prime is 80276297. The reversal of 80276257 is 75267208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80276257 - 2³ = 80276249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80276297) 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, 37593 + ... + 39670.

It is an arithmetic number, because the mean of its divisors is an integer number (20088640).

Almost surely, 2^80276257 is an apocalyptic number.

It is an amenable number.

80276257 is a deficient number, since it is larger than the sum of its proper divisors (78303).

80276257 is a wasteful number, since it uses less digits than its factorization.

80276257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78302.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 80276257 is about 8959.7018365568. The cubic root of 80276257 is about 431.3823495762.

The spelling of 80276257 in words is "eighty million, two hundred seventy-six thousand, two hundred fifty-seven".