13503155557 has 2 divisors, whose sum is σ = 13503155558. Its totient is φ = 13503155556.

The previous prime is 13503155551. The next prime is 13503155563. The reversal of 13503155557 is 75555130531.

It is a balanced prime because it is at equal distance from previous prime (13503155551) and next prime (13503155563).

It can be written as a sum of positive squares in only one way, i.e., 8349207876 + 5153947681 = 91374^2 + 71791^2 .

It is a cyclic number.

It is not a de Polignac number, because 13503155557 - 2²³ = 13494766949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13503155551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6751577778 + 6751577779.

It is an arithmetic number, because the mean of its divisors is an integer number (6751577779).

Almost surely, 2^13503155557 is an apocalyptic number.

It is an amenable number.

13503155557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13503155557 is an equidigital number, since it uses as much as digits as its factorization.

13503155557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196875, while the sum is 40.

The spelling of 13503155557 in words is "thirteen billion, five hundred three million, one hundred fifty-five thousand, five hundred fifty-seven".