6650554531 has 4 divisors (see below), whose sum is σ = 6651737064. Its totient is φ = 6649372000.

The previous prime is 6650554499. The next prime is 6650554549. The reversal of 6650554531 is 1354550566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6650554531 - 2⁵ = 6650554499 is a prime.

It is a super-2 number, since 2×6650554531² = 88459751139609259922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6650555531) 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, 582790 + ... + 594091.

It is an arithmetic number, because the mean of its divisors is an integer number (1662934266).

Almost surely, 2^6650554531 is an apocalyptic number.

6650554531 is a deficient number, since it is larger than the sum of its proper divisors (1182533).

6650554531 is a wasteful number, since it uses less digits than its factorization.

6650554531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182532.

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 6650554531 is about 81550.9321283332. The cubic root of 6650554531 is about 1880.5546246338.

The spelling of 6650554531 in words is "six billion, six hundred fifty million, five hundred fifty-four thousand, five hundred thirty-one".