51989548 has 48 divisors (see below), whose sum is σ = 104358240. Its totient is φ = 22464000.

The previous prime is 51989533. The next prime is 51989549. The reversal of 51989548 is 84598915.

It is not an unprimeable number, because it can be changed into a prime (51989549) 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 15 ways as a sum of consecutive naturals, for example, 99528 + ... + 100048.

It is an arithmetic number, because the mean of its divisors is an integer number (2174130).

Almost surely, 2^51989548 is an apocalyptic number.

It is an amenable number.

51989548 is an abundant number, since it is smaller than the sum of its proper divisors (52368692).

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

51989548 is a wasteful number, since it uses less digits than its factorization.

51989548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 656 counting only the distinct ones).

The product of its digits is 518400, while the sum is 49.

The square root of 51989548 is about 7210.3777987010. The cubic root of 51989548 is about 373.2261061813.

The spelling of 51989548 in words is "fifty-one million, nine hundred eighty-nine thousand, five hundred forty-eight".