53021428969 has 2 divisors, whose sum is σ = 53021428970. Its totient is φ = 53021428968.

The previous prime is 53021428961. The next prime is 53021428997. The reversal of 53021428969 is 96982412035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41275204569 + 11746224400 = 203163^2 + 108380^2 .

It is a cyclic number.

It is not a de Polignac number, because 53021428969 - 2³ = 53021428961 is a prime.

It is a super-2 number, since 2×53021428969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53021428961) 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, 26510714484 + 26510714485.

It is an arithmetic number, because the mean of its divisors is an integer number (26510714485).

Almost surely, 2^53021428969 is an apocalyptic number.

It is an amenable number.

53021428969 is a deficient number, since it is larger than the sum of its proper divisors (1).

53021428969 is an equidigital number, since it uses as much as digits as its factorization.

53021428969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 53021428969 in words is "fifty-three billion, twenty-one million, four hundred twenty-eight thousand, nine hundred sixty-nine".