51230029 has 2 divisors, whose sum is σ = 51230030. Its totient is φ = 51230028.

The previous prime is 51230021. The next prime is 51230063. The reversal of 51230029 is 92003215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50836900 + 393129 = 7130^2 + 627^2 .

It is a cyclic number.

It is not a de Polignac number, because 51230029 - 2³ = 51230021 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51229991 and 51230009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51230021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25615014 + 25615015.

It is an arithmetic number, because the mean of its divisors is an integer number (25615015).

Almost surely, 2^51230029 is an apocalyptic number.

It is an amenable number.

51230029 is a deficient number, since it is larger than the sum of its proper divisors (1).

51230029 is an equidigital number, since it uses as much as digits as its factorization.

51230029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 51230029 is about 7157.5155605839. The cubic root of 51230029 is about 371.3996874341.

The spelling of 51230029 in words is "fifty-one million, two hundred thirty thousand, twenty-nine".