51566848 has 72 divisors (see below), whose sum is σ = 112031640. Its totient is φ = 23674880.

The previous prime is 51566813. The next prime is 51566869. The reversal of 51566848 is 84866515.

It can be written as a sum of positive squares in 4 ways, for example, as 1327104 + 50239744 = 1152^2 + 7088^2 .

Its product of digits (230400) is a multiple of the sum of its prime divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257708 + ... + 1257748.

It is an arithmetic number, because the mean of its divisors is an integer number (1555995).

Almost surely, 2^51566848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51566848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56015820).

51566848 is an abundant number, since it is smaller than the sum of its proper divisors (60464792).

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

51566848 is an frugal number, since it uses more digits than its factorization.

51566848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 60 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The square root of 51566848 is about 7181.0060576496. The cubic root of 51566848 is about 372.2118498863.

The spelling of 51566848 in words is "fifty-one million, five hundred sixty-six thousand, eight hundred forty-eight".