6621551050 has 24 divisors (see below), whose sum is σ = 12454476300. Its totient is φ = 2618858880.

The previous prime is 6621550997. The next prime is 6621551059. The reversal of 6621551050 is 501551266.

It can be written as a sum of positive squares in 6 ways, for example, as 216590089 + 6404960961 = 14717^2 + 80031^2 .

It is a super-2 number, since 2×6621551050² = 87689876615512205000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6621551059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 739545 + ... + 748444.

Almost surely, 2^6621551050 is an apocalyptic number.

6621551050 is a deficient number, since it is larger than the sum of its proper divisors (5832925250).

6621551050 is a wasteful number, since it uses less digits than its factorization.

6621551050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488090 (or 1488085 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 6621551050 is about 81372.9134909154. The cubic root of 6621551050 is about 1877.8169025054.

The spelling of 6621551050 in words is "six billion, six hundred twenty-one million, five hundred fifty-one thousand, fifty".