51935641 has 4 divisors (see below), whose sum is σ = 51991092. Its totient is φ = 51880192.

The previous prime is 51935623. The next prime is 51935647. The reversal of 51935641 is 14653915.

51935641 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 20250000 + 31685641 = 4500^2 + 5629^2 .

It is a cyclic number.

It is not a de Polignac number, because 51935641 - 2²¹ = 49838489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51935597 and 51935606.

It is not an unprimeable number, because it can be changed into a prime (51935647) 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, 26296 + ... + 28201.

It is an arithmetic number, because the mean of its divisors is an integer number (12997773).

Almost surely, 2^51935641 is an apocalyptic number.

It is an amenable number.

51935641 is a deficient number, since it is larger than the sum of its proper divisors (55451).

51935641 is an equidigital number, since it uses as much as digits as its factorization.

51935641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55450.

The product of its digits is 16200, while the sum is 34.

The square root of 51935641 is about 7206.6386755546. The cubic root of 51935641 is about 373.0970644903.

The spelling of 51935641 in words is "fifty-one million, nine hundred thirty-five thousand, six hundred forty-one".