53021429189 has 2 divisors, whose sum is σ = 53021429190. Its totient is φ = 53021429188.

The previous prime is 53021429179. The next prime is 53021429207. The reversal of 53021429189 is 98192412035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48618045025 + 4403384164 = 220495^2 + 66358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53021429189 is a prime.

It is a super-2 number, since 2×53021429189² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53021429129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26510714594 + 26510714595.

It is an arithmetic number, because the mean of its divisors is an integer number (26510714595).

Almost surely, 2^53021429189 is an apocalyptic number.

It is an amenable number.

53021429189 is a deficient number, since it is larger than the sum of its proper divisors (1).

53021429189 is an equidigital number, since it uses as much as digits as its factorization.

53021429189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 53021429189 in words is "fifty-three billion, twenty-one million, four hundred twenty-nine thousand, one hundred eighty-nine".