51696441 has 16 divisors (see below), whose sum is σ = 77380800. Its totient is φ = 34107264.

The previous prime is 51696431. The next prime is 51696443. The reversal of 51696441 is 14469615.

51696441 is a `hidden beast` number, since 5 + 1 + 6 + 9 + 644 + 1 = 666.

51696441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51696441 - 2⁶ = 51696377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51696396 and 51696405.

It is not an unprimeable number, because it can be changed into a prime (51696443) 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 15 ways as a sum of consecutive naturals, for example, 7251 + ... + 12488.

It is an arithmetic number, because the mean of its divisors is an integer number (4836300).

Almost surely, 2^51696441 is an apocalyptic number.

It is an amenable number.

51696441 is a deficient number, since it is larger than the sum of its proper divisors (25684359).

51696441 is a wasteful number, since it uses less digits than its factorization.

51696441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19845 (or 19839 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 51696441 is about 7190.0237134519. The cubic root of 51696441 is about 372.5233917716.

The spelling of 51696441 in words is "fifty-one million, six hundred ninety-six thousand, four hundred forty-one".