51523783 has 2 divisors, whose sum is σ = 51523784. Its totient is φ = 51523782.

The previous prime is 51523727. The next prime is 51523853. The reversal of 51523783 is 38732515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51523783 - 2²¹ = 49426631 is a prime.

It is equal to p_3086980 and since 51523783 and 3086980 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51523883) 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, 25761891 + 25761892.

It is an arithmetic number, because the mean of its divisors is an integer number (25761892).

Almost surely, 2^51523783 is an apocalyptic number.

51523783 is a deficient number, since it is larger than the sum of its proper divisors (1).

51523783 is an equidigital number, since it uses as much as digits as its factorization.

51523783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 51523783 is about 7178.0068960680. The cubic root of 51523783 is about 372.1082059872.

The spelling of 51523783 in words is "fifty-one million, five hundred twenty-three thousand, seven hundred eighty-three".