51354623 has 2 divisors, whose sum is σ = 51354624. Its totient is φ = 51354622.

The previous prime is 51354601. The next prime is 51354643. The reversal of 51354623 is 32645315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51354623 - 2¹² = 51350527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51354643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25677311 + 25677312.

It is an arithmetic number, because the mean of its divisors is an integer number (25677312).

Almost surely, 2^51354623 is an apocalyptic number.

51354623 is a deficient number, since it is larger than the sum of its proper divisors (1).

51354623 is an equidigital number, since it uses as much as digits as its factorization.

51354623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 29.

The square root of 51354623 is about 7166.2139934557. The cubic root of 51354623 is about 371.7005312325.

Adding to 51354623 its reverse (32645315), we get a palindrome (83999938).

The spelling of 51354623 in words is "fifty-one million, three hundred fifty-four thousand, six hundred twenty-three".