2557230327557 has 2 divisors, whose sum is σ = 2557230327558. Its totient is φ = 2557230327556.

The previous prime is 2557230327539. The next prime is 2557230327569. The reversal of 2557230327557 is 7557230327552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2547516056836 + 9714270721 = 1596094^2 + 98561^2 .

It is a cyclic number.

It is not a de Polignac number, because 2557230327557 - 2¹⁶ = 2557230262021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2557230327499 and 2557230327508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557230327577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278615163778 + 1278615163779.

It is an arithmetic number, because the mean of its divisors is an integer number (1278615163779).

Almost surely, 2^{2557230327557} is an apocalyptic number.

It is an amenable number.

2557230327557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557230327557 is an equidigital number, since it uses as much as digits as its factorization.

2557230327557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15435000, while the sum is 53.

The spelling of 2557230327557 in words is "two trillion, five hundred fifty-seven billion, two hundred thirty million, three hundred twenty-seven thousand, five hundred fifty-seven".