51638303 has 2 divisors, whose sum is σ = 51638304. Its totient is φ = 51638302.

The previous prime is 51638297. The next prime is 51638309. The reversal of 51638303 is 30383615.

It is a balanced prime because it is at equal distance from previous prime (51638297) and next prime (51638309).

It is a cyclic number.

It is not a de Polignac number, because 51638303 - 2⁴ = 51638287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51638309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25819151 + 25819152.

It is an arithmetic number, because the mean of its divisors is an integer number (25819152).

Almost surely, 2^51638303 is an apocalyptic number.

51638303 is a deficient number, since it is larger than the sum of its proper divisors (1).

51638303 is an equidigital number, since it uses as much as digits as its factorization.

51638303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 51638303 is about 7185.9796131077. The cubic root of 51638303 is about 372.3836923493.

The spelling of 51638303 in words is "fifty-one million, six hundred thirty-eight thousand, three hundred three".