51896560 has 40 divisors (see below), whose sum is σ = 121242240. Its totient is φ = 20658432.

The previous prime is 51896539. The next prime is 51896561. The reversal of 51896560 is 6569815.

51896560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51896561) 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, 16386 + ... + 19294.

It is an arithmetic number, because the mean of its divisors is an integer number (3031056).

Almost surely, 2^51896560 is an apocalyptic number.

It is an amenable number.

51896560 is an abundant number, since it is smaller than the sum of its proper divisors (69345680).

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

51896560 is a wasteful number, since it uses less digits than its factorization.

51896560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145 (or 3139 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 51896560 is about 7203.9267070119. The cubic root of 51896560 is about 373.0034571911.

The spelling of 51896560 in words is "fifty-one million, eight hundred ninety-six thousand, five hundred sixty".