51450026 has 4 divisors (see below), whose sum is σ = 77175042. Its totient is φ = 25725012.

The previous prime is 51450019. The next prime is 51450053. The reversal of 51450026 is 62005415.

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., 44422225 + 7027801 = 6665^2 + 2651^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51449983 and 51450010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12862505 + ... + 12862508.

Almost surely, 2^51450026 is an apocalyptic number.

51450026 is a deficient number, since it is larger than the sum of its proper divisors (25725016).

51450026 is a wasteful number, since it uses less digits than its factorization.

51450026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25725015.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 51450026 is about 7172.8673485573. The cubic root of 51450026 is about 371.9305618650.

The spelling of 51450026 in words is "fifty-one million, four hundred fifty thousand, twenty-six".