51080266 has 4 divisors (see below), whose sum is σ = 76620402. Its totient is φ = 25540132.

The previous prime is 51080243. The next prime is 51080269. The reversal of 51080266 is 66208015.

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

It can be written as a sum of positive squares in only one way, i.e., 51051025 + 29241 = 7145^2 + 171^2 .

It is not an unprimeable number, because it can be changed into a prime (51080269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12770065 + ... + 12770068.

Almost surely, 2^51080266 is an apocalyptic number.

51080266 is a deficient number, since it is larger than the sum of its proper divisors (25540136).

51080266 is a wasteful number, since it uses less digits than its factorization.

51080266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25540135.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 51080266 is about 7147.0459631935. The cubic root of 51080266 is about 371.0374245103.

The spelling of 51080266 in words is "fifty-one million, eighty thousand, two hundred sixty-six".