53629187281 has 2 divisors, whose sum is σ = 53629187282. Its totient is φ = 53629187280.

The previous prime is 53629187203. The next prime is 53629187291. The reversal of 53629187281 is 18278192635.

It is a happy number.

53629187281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44767789056 + 8861398225 = 211584^2 + 94135^2 .

It is a cyclic number.

It is not a de Polignac number, because 53629187281 - 2⁷ = 53629187153 is a prime.

It is a super-2 number, since 2×53629187281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53629187291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26814593640 + 26814593641.

It is an arithmetic number, because the mean of its divisors is an integer number (26814593641).

Almost surely, 2^53629187281 is an apocalyptic number.

It is an amenable number.

53629187281 is a deficient number, since it is larger than the sum of its proper divisors (1).

53629187281 is an equidigital number, since it uses as much as digits as its factorization.

53629187281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 52.

The spelling of 53629187281 in words is "fifty-three billion, six hundred twenty-nine million, one hundred eighty-seven thousand, two hundred eighty-one".