51280548 has 24 divisors (see below), whose sum is σ = 130532640. Its totient is φ = 15539520.

The previous prime is 51280513. The next prime is 51280549. The reversal of 51280548 is 84508215.

51280548 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (51280549) by changing a digit.

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, 194113 + ... + 194376.

It is an arithmetic number, because the mean of its divisors is an integer number (5438860).

Almost surely, 2^51280548 is an apocalyptic number.

It is an amenable number.

51280548 is an abundant number, since it is smaller than the sum of its proper divisors (79252092).

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

51280548 is a wasteful number, since it uses less digits than its factorization.

51280548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388507 (or 388505 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 51280548 is about 7161.0437786680. The cubic root of 51280548 is about 371.5217289861.

The spelling of 51280548 in words is "fifty-one million, two hundred eighty thousand, five hundred forty-eight".