51225458 has 4 divisors (see below), whose sum is σ = 76838190. Its totient is φ = 25612728.

The previous prime is 51225431. The next prime is 51225467. The reversal of 51225458 is 85452215.

51225458 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.

It can be written as a sum of positive squares in only one way, i.e., 51222649 + 2809 = 7157^2 + 53^2 .

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, 12806363 + ... + 12806366.

Almost surely, 2^51225458 is an apocalyptic number.

51225458 is a deficient number, since it is larger than the sum of its proper divisors (25612732).

51225458 is a wasteful number, since it uses less digits than its factorization.

51225458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25612731.

The product of its digits is 16000, while the sum is 32.

The square root of 51225458 is about 7157.1962387516. The cubic root of 51225458 is about 371.3886410582.

The spelling of 51225458 in words is "fifty-one million, two hundred twenty-five thousand, four hundred fifty-eight".