51961544 has 16 divisors (see below), whose sum is σ = 99694320. Its totient is φ = 25376400.

The previous prime is 51961541. The next prime is 51961573. The reversal of 51961544 is 44516915.

51961544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51961541) 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 3 ways as a sum of consecutive naturals, for example, 75182 + ... + 75869.

It is an arithmetic number, because the mean of its divisors is an integer number (6230895).

Almost surely, 2^51961544 is an apocalyptic number.

It is an amenable number.

51961544 is a deficient number, since it is larger than the sum of its proper divisors (47732776).

51961544 is a wasteful number, since it uses less digits than its factorization.

51961544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151100 (or 151096 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 51961544 is about 7208.4356139179. The cubic root of 51961544 is about 373.1590818052.

The spelling of 51961544 in words is "fifty-one million, nine hundred sixty-one thousand, five hundred forty-four".