51317026 has 8 divisors (see below), whose sum is σ = 77006700. Its totient is φ = 25648128.

The previous prime is 51317011. The next prime is 51317027. The reversal of 51317026 is 62071315.

It can be written as a sum of positive squares in 2 ways, for example, as 49070025 + 2247001 = 7005^2 + 1499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51317027) 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, 4930 + ... + 11266.

Almost surely, 2^51317026 is an apocalyptic number.

51317026 is a deficient number, since it is larger than the sum of its proper divisors (25689674).

51317026 is a wasteful number, since it uses less digits than its factorization.

51317026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10388.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 51317026 is about 7163.5903009594. The cubic root of 51317026 is about 371.6098010912.

The spelling of 51317026 in words is "fifty-one million, three hundred seventeen thousand, twenty-six".