53140021469 has 2 divisors, whose sum is σ = 53140021470. Its totient is φ = 53140021468.

The previous prime is 53140021463. The next prime is 53140021531. The reversal of 53140021469 is 96412004135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28955106244 + 24184915225 = 170162^2 + 155515^2 .

It is a cyclic number.

It is not a de Polignac number, because 53140021469 - 2¹² = 53140017373 is a prime.

It is a super-2 number, since 2×53140021469² (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 (53140021463) 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, 26570010734 + 26570010735.

It is an arithmetic number, because the mean of its divisors is an integer number (26570010735).

Almost surely, 2^53140021469 is an apocalyptic number.

It is an amenable number.

53140021469 is a deficient number, since it is larger than the sum of its proper divisors (1).

53140021469 is an equidigital number, since it uses as much as digits as its factorization.

53140021469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 53140021469 in words is "fifty-three billion, one hundred forty million, twenty-one thousand, four hundred sixty-nine".