55724506771237 has 2 divisors, whose sum is σ = 55724506771238. Its totient is φ = 55724506771236.

The previous prime is 55724506771123. The next prime is 55724506771247. The reversal of 55724506771237 is 73217760542755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46361922663681 + 9362584107556 = 6808959^2 + 3059834^2 .

It is a cyclic number.

It is not a de Polignac number, because 55724506771237 - 2¹¹ = 55724506769189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55724506771247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27862253385618 + 27862253385619.

It is an arithmetic number, because the mean of its divisors is an integer number (27862253385619).

Almost surely, 2^{55724506771237} is an apocalyptic number.

It is an amenable number.

55724506771237 is a deficient number, since it is larger than the sum of its proper divisors (1).

55724506771237 is an equidigital number, since it uses as much as digits as its factorization.

55724506771237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86436000, while the sum is 61.

The spelling of 55724506771237 in words is "fifty-five trillion, seven hundred twenty-four billion, five hundred six million, seven hundred seventy-one thousand, two hundred thirty-seven".