51150823 has 2 divisors, whose sum is σ = 51150824. Its totient is φ = 51150822.

The previous prime is 51150811. The next prime is 51150833. The reversal of 51150823 is 32805115.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51150823 - 2⁵ = 51150791 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51150833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25575411 + 25575412.

It is an arithmetic number, because the mean of its divisors is an integer number (25575412).

Almost surely, 2^51150823 is an apocalyptic number.

51150823 is a deficient number, since it is larger than the sum of its proper divisors (1).

51150823 is an equidigital number, since it uses as much as digits as its factorization.

51150823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 51150823 is about 7151.9803551184. The cubic root of 51150823 is about 371.2081834946.

Adding to 51150823 its reverse (32805115), we get a palindrome (83955938).

The spelling of 51150823 in words is "fifty-one million, one hundred fifty thousand, eight hundred twenty-three".