53553445129 has 2 divisors, whose sum is σ = 53553445130. Its totient is φ = 53553445128.

The previous prime is 53553445093. The next prime is 53553445213. The reversal of 53553445129 is 92154435535.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37303059600 + 16250385529 = 193140^2 + 127477^2 .

It is a cyclic number.

It is not a de Polignac number, because 53553445129 - 2²¹ = 53551347977 is a prime.

It is not a weakly prime, because it can be changed into another prime (53553445229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26776722564 + 26776722565.

It is an arithmetic number, because the mean of its divisors is an integer number (26776722565).

Almost surely, 2^53553445129 is an apocalyptic number.

It is an amenable number.

53553445129 is a deficient number, since it is larger than the sum of its proper divisors (1).

53553445129 is an equidigital number, since it uses as much as digits as its factorization.

53553445129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620000, while the sum is 46.

The spelling of 53553445129 in words is "fifty-three billion, five hundred fifty-three million, four hundred forty-five thousand, one hundred twenty-nine".