1553141402557 has 2 divisors, whose sum is σ = 1553141402558. Its totient is φ = 1553141402556.

The previous prime is 1553141402503. The next prime is 1553141402567. The reversal of 1553141402557 is 7552041413551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1091918412601 + 461222989956 = 1044949^2 + 679134^2 .

It is an emirp because it is prime and its reverse (7552041413551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1553141402557 - 2²⁷ = 1553007184829 is a prime.

It is a super-2 number, since 2×1553141402557² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553141402567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776570701278 + 776570701279.

It is an arithmetic number, because the mean of its divisors is an integer number (776570701279).

Almost surely, 2^{1553141402557} is an apocalyptic number.

It is an amenable number.

1553141402557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553141402557 is an equidigital number, since it uses as much as digits as its factorization.

1553141402557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 1553141402557 in words is "one trillion, five hundred fifty-three billion, one hundred forty-one million, four hundred two thousand, five hundred fifty-seven".