51386448 has 40 divisors (see below), whose sum is σ = 135991296. Its totient is φ = 16710400.

The previous prime is 51386389. The next prime is 51386459. The reversal of 51386448 is 84468315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11088 + ... + 15023.

Almost surely, 2^51386448 is an apocalyptic number.

It is an amenable number.

51386448 is an abundant number, since it is smaller than the sum of its proper divisors (84604848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51386448 is a wasteful number, since it uses less digits than its factorization.

51386448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26163 (or 26157 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 51386448 is about 7168.4341386386. The cubic root of 51386448 is about 371.7772976200. Note that the first 3 decimals are identical.

The spelling of 51386448 in words is "fifty-one million, three hundred eighty-six thousand, four hundred forty-eight".