51161426 has 8 divisors (see below), whose sum is σ = 76949004. Its totient is φ = 25511760.

The previous prime is 51161419. The next prime is 51161431. The reversal of 51161426 is 62416115.

It can be written as a sum of positive squares in 2 ways, for example, as 50395801 + 765625 = 7099^2 + 875^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 51161395 and 51161404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33545 + ... + 35036.

Almost surely, 2^51161426 is an apocalyptic number.

51161426 is a deficient number, since it is larger than the sum of its proper divisors (25787578).

51161426 is a wasteful number, since it uses less digits than its factorization.

51161426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68956.

The product of its digits is 1440, while the sum is 26.

The square root of 51161426 is about 7152.7215799303. The cubic root of 51161426 is about 371.2338308398.

The spelling of 51161426 in words is "fifty-one million, one hundred sixty-one thousand, four hundred twenty-six".