53427515389 has 2 divisors, whose sum is σ = 53427515390. Its totient is φ = 53427515388.

The previous prime is 53427515369. The next prime is 53427515441. The reversal of 53427515389 is 98351572435.

It is an a-pointer prime, because the next prime (53427515441) can be obtained adding 53427515389 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53418765625 + 8749764 = 231125^2 + 2958^2 .

It is a cyclic number.

It is not a de Polignac number, because 53427515389 - 2²⁷ = 53293297661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53427515359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26713757694 + 26713757695.

It is an arithmetic number, because the mean of its divisors is an integer number (26713757695).

Almost surely, 2^53427515389 is an apocalyptic number.

It is an amenable number.

53427515389 is a deficient number, since it is larger than the sum of its proper divisors (1).

53427515389 is an equidigital number, since it uses as much as digits as its factorization.

53427515389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 52.

The spelling of 53427515389 in words is "fifty-three billion, four hundred twenty-seven million, five hundred fifteen thousand, three hundred eighty-nine".