51452129 has 2 divisors, whose sum is σ = 51452130. Its totient is φ = 51452128.

The previous prime is 51452111. The next prime is 51452143. The reversal of 51452129 is 92125415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32547025 + 18905104 = 5705^2 + 4348^2 .

It is a cyclic number.

It is not a de Polignac number, because 51452129 - 2²⁰ = 50403553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51452729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25726064 + 25726065.

It is an arithmetic number, because the mean of its divisors is an integer number (25726065).

Almost surely, 2^51452129 is an apocalyptic number.

It is an amenable number.

51452129 is a deficient number, since it is larger than the sum of its proper divisors (1).

51452129 is an equidigital number, since it uses as much as digits as its factorization.

51452129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 29.

The square root of 51452129 is about 7173.0139411547. The cubic root of 51452129 is about 371.9356293021.

The spelling of 51452129 in words is "fifty-one million, four hundred fifty-two thousand, one hundred twenty-nine".