51584428 has 24 divisors (see below), whose sum is σ = 104586272. Its totient is φ = 21803904.

The previous prime is 51584371. The next prime is 51584441. The reversal of 51584428 is 82448515.

51584428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 7 ways as a sum of consecutive naturals, for example, 10575 + ... + 14662.

Almost surely, 2^51584428 is an apocalyptic number.

It is an amenable number.

51584428 is an abundant number, since it is smaller than the sum of its proper divisors (53001844).

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

51584428 is a wasteful number, since it uses less digits than its factorization.

51584428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25321 (or 25319 counting only the distinct ones).

The product of its digits is 51200, while the sum is 37.

The square root of 51584428 is about 7182.2300158099. The cubic root of 51584428 is about 372.2541428266.

The spelling of 51584428 in words is "fifty-one million, five hundred eighty-four thousand, four hundred twenty-eight".