51062813 has 2 divisors, whose sum is σ = 51062814. Its totient is φ = 51062812.

The previous prime is 51062807. The next prime is 51062819. The reversal of 51062813 is 31826015.

It is a balanced prime because it is at equal distance from previous prime (51062807) and next prime (51062819).

It can be written as a sum of positive squares in only one way, i.e., 45873529 + 5189284 = 6773^2 + 2278^2 .

It is a cyclic number.

It is not a de Polignac number, because 51062813 - 2⁶ = 51062749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51062819) 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, 25531406 + 25531407.

It is an arithmetic number, because the mean of its divisors is an integer number (25531407).

Almost surely, 2^51062813 is an apocalyptic number.

It is an amenable number.

51062813 is a deficient number, since it is larger than the sum of its proper divisors (1).

51062813 is an equidigital number, since it uses as much as digits as its factorization.

51062813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 51062813 is about 7145.8248649124. The cubic root of 51062813 is about 370.9951612624.

Adding to 51062813 its reverse (31826015), we get a palindrome (82888828).

The spelling of 51062813 in words is "fifty-one million, sixty-two thousand, eight hundred thirteen".