53723129 has 2 divisors, whose sum is σ = 53723130. Its totient is φ = 53723128.

The previous prime is 53723123. The next prime is 53723183. The reversal of 53723129 is 92132735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40386025 + 13337104 = 6355^2 + 3652^2 .

It is a cyclic number.

It is not a de Polignac number, because 53723129 - 2¹² = 53719033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53723095 and 53723104.

It is not a weakly prime, because it can be changed into another prime (53723123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26861564 + 26861565.

It is an arithmetic number, because the mean of its divisors is an integer number (26861565).

Almost surely, 2^53723129 is an apocalyptic number.

It is an amenable number.

53723129 is a deficient number, since it is larger than the sum of its proper divisors (1).

53723129 is an equidigital number, since it uses as much as digits as its factorization.

53723129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 32.

The square root of 53723129 is about 7329.6063332215. The cubic root of 53723129 is about 377.3292159072.

The spelling of 53723129 in words is "fifty-three million, seven hundred twenty-three thousand, one hundred twenty-nine".