51582561 has 8 divisors (see below), whose sum is σ = 71148480. Its totient is φ = 33202512.

The previous prime is 51582533. The next prime is 51582571. The reversal of 51582561 is 16528515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51582561 - 2⁹ = 51582049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51582571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296365 + ... + 296538.

It is an arithmetic number, because the mean of its divisors is an integer number (8893560).

Almost surely, 2^51582561 is an apocalyptic number.

It is an amenable number.

51582561 is a deficient number, since it is larger than the sum of its proper divisors (19565919).

51582561 is a wasteful number, since it uses less digits than its factorization.

51582561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592935.

The product of its digits is 12000, while the sum is 33.

The square root of 51582561 is about 7182.1000410743. The cubic root of 51582561 is about 372.2496517628.

The spelling of 51582561 in words is "fifty-one million, five hundred eighty-two thousand, five hundred sixty-one".