51329699 has 2 divisors, whose sum is σ = 51329700. Its totient is φ = 51329698.

The previous prime is 51329671. The next prime is 51329711. The reversal of 51329699 is 99692315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51329699 - 2²⁰ = 50281123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51329639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25664849 + 25664850.

It is an arithmetic number, because the mean of its divisors is an integer number (25664850).

Almost surely, 2^51329699 is an apocalyptic number.

51329699 is a deficient number, since it is larger than the sum of its proper divisors (1).

51329699 is an equidigital number, since it uses as much as digits as its factorization.

51329699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 44.

The square root of 51329699 is about 7164.4747888453. The cubic root of 51329699 is about 371.6403888822.

The spelling of 51329699 in words is "fifty-one million, three hundred twenty-nine thousand, six hundred ninety-nine".