5551551151613 has 2 divisors, whose sum is σ = 5551551151614. Its totient is φ = 5551551151612.

The previous prime is 5551551151513. The next prime is 5551551151651. The reversal of 5551551151613 is 3161511551555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4845888990244 + 705662161369 = 2201338^2 + 840037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5551551151613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5551551151673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775775575806 + 2775775575807.

It is an arithmetic number, because the mean of its divisors is an integer number (2775775575807).

Almost surely, 2^{5551551151613} is an apocalyptic number.

It is an amenable number.

5551551151613 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551551151613 is an equidigital number, since it uses as much as digits as its factorization.

5551551151613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 281250, while the sum is 44.

The spelling of 5551551151613 in words is "five trillion, five hundred fifty-one billion, five hundred fifty-one million, one hundred fifty-one thousand, six hundred thirteen".