51568548 has 48 divisors (see below), whose sum is σ = 127915200. Its totient is φ = 16113664.

The previous prime is 51568519. The next prime is 51568571. The reversal of 51568548 is 84586515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91315 + ... + 91877.

It is an arithmetic number, because the mean of its divisors is an integer number (2664900).

Almost surely, 2^51568548 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 51568548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63957600).

51568548 is an abundant number, since it is smaller than the sum of its proper divisors (76346652).

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

51568548 is a wasteful number, since it uses less digits than its factorization.

51568548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 1034 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 51568548 is about 7181.1244244895. The cubic root of 51568548 is about 372.2159400671.

The spelling of 51568548 in words is "fifty-one million, five hundred sixty-eight thousand, five hundred forty-eight".