51207623 has 2 divisors, whose sum is σ = 51207624. Its totient is φ = 51207622.

The previous prime is 51207619. The next prime is 51207643. The reversal of 51207623 is 32670215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51207623 - 2² = 51207619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51207592 and 51207601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51207613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25603811 + 25603812.

It is an arithmetic number, because the mean of its divisors is an integer number (25603812).

Almost surely, 2^51207623 is an apocalyptic number.

51207623 is a deficient number, since it is larger than the sum of its proper divisors (1).

51207623 is an equidigital number, since it uses as much as digits as its factorization.

51207623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 51207623 is about 7155.9501814923. The cubic root of 51207623 is about 371.3455343327.

Adding to 51207623 its reverse (32670215), we get a palindrome (83877838).

The spelling of 51207623 in words is "fifty-one million, two hundred seven thousand, six hundred twenty-three".