51696583 has 2 divisors, whose sum is σ = 51696584. Its totient is φ = 51696582.

The previous prime is 51696577. The next prime is 51696599. The reversal of 51696583 is 38569615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51696583 - 2⁵ = 51696551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51696523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25848291 + 25848292.

It is an arithmetic number, because the mean of its divisors is an integer number (25848292).

Almost surely, 2^51696583 is an apocalyptic number.

51696583 is a deficient number, since it is larger than the sum of its proper divisors (1).

51696583 is an equidigital number, since it uses as much as digits as its factorization.

51696583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 51696583 is about 7190.0335882387. The cubic root of 51696583 is about 372.5237328542.

The spelling of 51696583 in words is "fifty-one million, six hundred ninety-six thousand, five hundred eighty-three".