6631005553 has 4 divisors (see below), whose sum is σ = 6681624048. Its totient is φ = 6580387060.

The previous prime is 6631005523. The next prime is 6631005569. The reversal of 6631005553 is 3555001366.

6631005553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6631005553 - 2¹³ = 6630997361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6631005523) 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, 25309051 + ... + 25309312.

It is an arithmetic number, because the mean of its divisors is an integer number (1670406012).

Almost surely, 2^6631005553 is an apocalyptic number.

It is an amenable number.

6631005553 is a deficient number, since it is larger than the sum of its proper divisors (50618495).

6631005553 is a wasteful number, since it uses less digits than its factorization.

6631005553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50618494.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 6631005553 is about 81430.9864425085. The cubic root of 6631005553 is about 1878.7102169891.

The spelling of 6631005553 in words is "six billion, six hundred thirty-one million, five thousand, five hundred fifty-three".