6550025605 has 4 divisors (see below), whose sum is σ = 7860030732. Its totient is φ = 5240020480.

The previous prime is 6550025567. The next prime is 6550025621. The reversal of 6550025605 is 5065200556.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1668068964 + 4881956641 = 40842^2 + 69871^2 .

It is not a de Polignac number, because 6550025605 - 2²⁷ = 6415807877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655002556 + ... + 655002565.

It is an arithmetic number, because the mean of its divisors is an integer number (1965007683).

Almost surely, 2^6550025605 is an apocalyptic number.

It is an amenable number.

6550025605 is a deficient number, since it is larger than the sum of its proper divisors (1310005127).

6550025605 is a wasteful number, since it uses less digits than its factorization.

6550025605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310005126.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 6550025605 is about 80932.2284692569. The cubic root of 6550025605 is about 1871.0310694129.

The spelling of 6550025605 in words is "six billion, five hundred fifty million, twenty-five thousand, six hundred five".