52051212149 has 2 divisors, whose sum is σ = 52051212150. Its totient is φ = 52051212148.

The previous prime is 52051212133. The next prime is 52051212197. The reversal of 52051212149 is 94121215025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51827709649 + 223502500 = 227657^2 + 14950^2 .

It is a cyclic number.

It is not a de Polignac number, because 52051212149 - 2⁴ = 52051212133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52051212349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26025606074 + 26025606075.

It is an arithmetic number, because the mean of its divisors is an integer number (26025606075).

Almost surely, 2^52051212149 is an apocalyptic number.

It is an amenable number.

52051212149 is a deficient number, since it is larger than the sum of its proper divisors (1).

52051212149 is an equidigital number, since it uses as much as digits as its factorization.

52051212149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 52051212149 in words is "fifty-two billion, fifty-one million, two hundred twelve thousand, one hundred forty-nine".