57215851241 has 2 divisors, whose sum is σ = 57215851242. Its totient is φ = 57215851240.

The previous prime is 57215851181. The next prime is 57215851279. The reversal of 57215851241 is 14215851275.

57215851241 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., 55084090000 + 2131761241 = 234700^2 + 46171^2 .

It is a cyclic number.

It is not a de Polignac number, because 57215851241 - 2⁶ = 57215851177 is a prime.

It is not a weakly prime, because it can be changed into another prime (57215851141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28607925620 + 28607925621.

It is an arithmetic number, because the mean of its divisors is an integer number (28607925621).

Almost surely, 2^57215851241 is an apocalyptic number.

It is an amenable number.

57215851241 is a deficient number, since it is larger than the sum of its proper divisors (1).

57215851241 is an equidigital number, since it uses as much as digits as its factorization.

57215851241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112000, while the sum is 41.

The spelling of 57215851241 in words is "fifty-seven billion, two hundred fifteen million, eight hundred fifty-one thousand, two hundred forty-one".