53423215189 has 2 divisors, whose sum is σ = 53423215190. Its totient is φ = 53423215188.

The previous prime is 53423215117. The next prime is 53423215199. The reversal of 53423215189 is 98151232435.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36303586225 + 17119628964 = 190535^2 + 130842^2 .

It is a cyclic number.

It is not a de Polignac number, because 53423215189 - 2¹¹ = 53423213141 is a prime.

It is a super-2 number, since 2×53423215189² (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 (53423215199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26711607594 + 26711607595.

It is an arithmetic number, because the mean of its divisors is an integer number (26711607595).

Almost surely, 2^53423215189 is an apocalyptic number.

It is an amenable number.

53423215189 is a deficient number, since it is larger than the sum of its proper divisors (1).

53423215189 is an equidigital number, since it uses as much as digits as its factorization.

53423215189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The spelling of 53423215189 in words is "fifty-three billion, four hundred twenty-three million, two hundred fifteen thousand, one hundred eighty-nine".