51936659 has 2 divisors, whose sum is σ = 51936660. Its totient is φ = 51936658.

The previous prime is 51936629. The next prime is 51936673. The reversal of 51936659 is 95663915.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51936659 is a prime.

It is not a weakly prime, because it can be changed into another prime (51936629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25968329 + 25968330.

It is an arithmetic number, because the mean of its divisors is an integer number (25968330).

Almost surely, 2^51936659 is an apocalyptic number.

51936659 is a deficient number, since it is larger than the sum of its proper divisors (1).

51936659 is an equidigital number, since it uses as much as digits as its factorization.

51936659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 218700, while the sum is 44.

The square root of 51936659 is about 7206.7093045301. The cubic root of 51936659 is about 373.0995021890.

The spelling of 51936659 in words is "fifty-one million, nine hundred thirty-six thousand, six hundred fifty-nine".