51649622803 has 2 divisors, whose sum is σ = 51649622804. Its totient is φ = 51649622802.

The previous prime is 51649622797. The next prime is 51649622807. The reversal of 51649622803 is 30822694615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51649622803 - 2⁹ = 51649622291 is a prime.

It is not a weakly prime, because it can be changed into another prime (51649622807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25824811401 + 25824811402.

It is an arithmetic number, because the mean of its divisors is an integer number (25824811402).

Almost surely, 2^51649622803 is an apocalyptic number.

51649622803 is a deficient number, since it is larger than the sum of its proper divisors (1).

51649622803 is an equidigital number, since it uses as much as digits as its factorization.

51649622803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 51649622803 in words is "fifty-one billion, six hundred forty-nine million, six hundred twenty-two thousand, eight hundred three".