51120026 has 4 divisors (see below), whose sum is σ = 76680042. Its totient is φ = 25560012.

The previous prime is 51119987. The next prime is 51120029. The reversal of 51120026 is 62002115.

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., 29170801 + 21949225 = 5401^2 + 4685^2 .

It is a super-2 number, since 2×51120026² = 5226514116481352, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51119986 and 51120013.

It is not an unprimeable number, because it can be changed into a prime (51120029) by changing a digit.

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 as a sum of consecutive naturals, namely, 12780005 + ... + 12780008.

Almost surely, 2^51120026 is an apocalyptic number.

51120026 is a deficient number, since it is larger than the sum of its proper divisors (25560016).

51120026 is a wasteful number, since it uses less digits than its factorization.

51120026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25560015.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51120026 is about 7149.8269909138. The cubic root of 51120026 is about 371.1336692582.

The spelling of 51120026 in words is "fifty-one million, one hundred twenty thousand, twenty-six".