51650623 has 2 divisors, whose sum is σ = 51650624. Its totient is φ = 51650622.

The previous prime is 51650579. The next prime is 51650633. The reversal of 51650623 is 32605615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51650623 - 2¹³ = 51642431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51650591 and 51650600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51650633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25825311 + 25825312.

It is an arithmetic number, because the mean of its divisors is an integer number (25825312).

Almost surely, 2^51650623 is an apocalyptic number.

51650623 is a deficient number, since it is larger than the sum of its proper divisors (1).

51650623 is an equidigital number, since it uses as much as digits as its factorization.

51650623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 51650623 is about 7186.8367867929. The cubic root of 51650623 is about 372.4133047495.

The spelling of 51650623 in words is "fifty-one million, six hundred fifty thousand, six hundred twenty-three".