51238444 has 6 divisors (see below), whose sum is σ = 89667284. Its totient is φ = 25619220.

The previous prime is 51238417. The next prime is 51238463. The reversal of 51238444 is 44483215.

51238444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51238444² = 5250756287082272, which contains 22 as substring.

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, 6404802 + ... + 6404809.

Almost surely, 2^51238444 is an apocalyptic number.

It is an amenable number.

51238444 is a deficient number, since it is larger than the sum of its proper divisors (38428840).

51238444 is a wasteful number, since it uses less digits than its factorization.

51238444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12809615 (or 12809613 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 51238444 is about 7158.1033800861. The cubic root of 51238444 is about 371.4200215840.

The spelling of 51238444 in words is "fifty-one million, two hundred thirty-eight thousand, four hundred forty-four".