6555055553 has 4 divisors (see below), whose sum is σ = 6558369840. Its totient is φ = 6551741268.

The previous prime is 6555055511. The next prime is 6555055561. The reversal of 6555055553 is 3555505556.

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 6555055553 - 2¹⁸ = 6554793409 is a prime.

It is a super-2 number, since 2×6555055553² = 85937506605832271618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6555055153) 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, 1654175 + ... + 1658132.

It is an arithmetic number, because the mean of its divisors is an integer number (1639592460).

Almost surely, 2^6555055553 is an apocalyptic number.

It is an amenable number.

6555055553 is a deficient number, since it is larger than the sum of its proper divisors (3314287).

6555055553 is a wasteful number, since it uses less digits than its factorization.

6555055553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314286.

The product of its (nonzero) digits is 1406250, while the sum is 44.

The square root of 6555055553 is about 80963.2975674781. The cubic root of 6555055553 is about 1871.5098859113.

The spelling of 6555055553 in words is "six billion, five hundred fifty-five million, fifty-five thousand, five hundred fifty-three".