5551551151553 has 4 divisors (see below), whose sum is σ = 6056237619888. Its totient is φ = 5046864683220.

The previous prime is 5551551151513. The next prime is 5551551151613. The reversal of 5551551151553 is 3551511551555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5551551151553 - 2¹⁰ = 5551551150529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5551551151498 and 5551551151507.

It is not an unprimeable number, because it can be changed into a prime (5551551151513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252343234151 + ... + 252343234172.

It is an arithmetic number, because the mean of its divisors is an integer number (1514059404972).

Almost surely, 2^{5551551151553} is an apocalyptic number.

It is an amenable number.

5551551151553 is a deficient number, since it is larger than the sum of its proper divisors (504686468335).

5551551151553 is a wasteful number, since it uses less digits than its factorization.

5551551151553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504686468334.

The product of its digits is 1171875, while the sum is 47.

The spelling of 5551551151553 in words is "five trillion, five hundred fifty-one billion, five hundred fifty-one million, one hundred fifty-one thousand, five hundred fifty-three".