51371266 has 4 divisors (see below), whose sum is σ = 77056902. Its totient is φ = 25685632.

The previous prime is 51371249. The next prime is 51371279. The reversal of 51371266 is 66217315.

51371266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66217315 = 5 ⋅13243463.

It can be written as a sum of positive squares in only one way, i.e., 51194025 + 177241 = 7155^2 + 421^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12842815 + ... + 12842818.

Almost surely, 2^51371266 is an apocalyptic number.

51371266 is a deficient number, since it is larger than the sum of its proper divisors (25685636).

51371266 is a wasteful number, since it uses less digits than its factorization.

51371266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25685635.

The product of its digits is 7560, while the sum is 31.

The square root of 51371266 is about 7167.3751122709. The cubic root of 51371266 is about 371.7406804501.

The spelling of 51371266 in words is "fifty-one million, three hundred seventy-one thousand, two hundred sixty-six".