52749632137 has 2 divisors, whose sum is σ = 52749632138. Its totient is φ = 52749632136.

The previous prime is 52749632101. The next prime is 52749632161. The reversal of 52749632137 is 73123694725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52644549136 + 105083001 = 229444^2 + 10251^2 .

It is a cyclic number.

It is not a de Polignac number, because 52749632137 - 2¹⁵ = 52749599369 is a prime.

It is not a weakly prime, because it can be changed into another prime (52749633137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26374816068 + 26374816069.

It is an arithmetic number, because the mean of its divisors is an integer number (26374816069).

Almost surely, 2^52749632137 is an apocalyptic number.

It is an amenable number.

52749632137 is a deficient number, since it is larger than the sum of its proper divisors (1).

52749632137 is an equidigital number, since it uses as much as digits as its factorization.

52749632137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 49.

The spelling of 52749632137 in words is "fifty-two billion, seven hundred forty-nine million, six hundred thirty-two thousand, one hundred thirty-seven".