1555466250241 has 2 divisors, whose sum is σ = 1555466250242. Its totient is φ = 1555466250240.

The previous prime is 1555466250229. The next prime is 1555466250251. The reversal of 1555466250241 is 1420526645551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 979189411600 + 576276838641 = 989540^2 + 759129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1555466250241 - 2¹⁹ = 1555465725953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1555466250191 and 1555466250200.

It is not a weakly prime, because it can be changed into another prime (1555466250251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777733125120 + 777733125121.

It is an arithmetic number, because the mean of its divisors is an integer number (777733125121).

Almost surely, 2^{1555466250241} is an apocalyptic number.

It is an amenable number.

1555466250241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1555466250241 is an equidigital number, since it uses as much as digits as its factorization.

1555466250241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440000, while the sum is 46.

The spelling of 1555466250241 in words is "one trillion, five hundred fifty-five billion, four hundred sixty-six million, two hundred fifty thousand, two hundred forty-one".