51960889 has 4 divisors (see below), whose sum is σ = 52672756. Its totient is φ = 51249024.

The previous prime is 51960869. The next prime is 51960901. The reversal of 51960889 is 98806915.

51960889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30030400 + 21930489 = 5480^2 + 4683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51960889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51960809) 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, 355824 + ... + 355969.

It is an arithmetic number, because the mean of its divisors is an integer number (13168189).

Almost surely, 2^51960889 is an apocalyptic number.

It is an amenable number.

51960889 is a deficient number, since it is larger than the sum of its proper divisors (711867).

51960889 is an equidigital number, since it uses as much as digits as its factorization.

51960889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711866.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 51960889 is about 7208.3901808934. The cubic root of 51960889 is about 373.1575138493.

The spelling of 51960889 in words is "fifty-one million, nine hundred sixty thousand, eight hundred eighty-nine".