5611621005 has 32 divisors (see below), whose sum is σ = 10219547520. Its totient is φ = 2919864960.

The previous prime is 5611620943. The next prime is 5611621027. The reversal of 5611621005 is 5001261165.

It is a happy number.

5611621005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5611621005 - 2⁶ = 5611620941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 5611621005.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 501387 + ... + 512456.

It is an arithmetic number, because the mean of its divisors is an integer number (319360860).

Almost surely, 2^5611621005 is an apocalyptic number.

It is an amenable number.

5611621005 is a deficient number, since it is larger than the sum of its proper divisors (4607926515).

5611621005 is a wasteful number, since it uses less digits than its factorization.

5611621005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013898 (or 1013892 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 5611621005 is about 74910.7536005345. The cubic root of 5611621005 is about 1777.0355281988.

The spelling of 5611621005 in words is "five billion, six hundred eleven million, six hundred twenty-one thousand, five".