5255521205 has 32 divisors (see below), whose sum is σ = 7013755008. Its totient is φ = 3748377600.

The previous prime is 5255521199. The next prime is 5255521217. The reversal of 5255521205 is 5021255525.

It is a de Polignac number, because none of the positive numbers 2^k-5255521205 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 31 ways as a sum of consecutive naturals, for example, 855545 + ... + 861665.

It is an arithmetic number, because the mean of its divisors is an integer number (219179844).

Almost surely, 2^5255521205 is an apocalyptic number.

5255521205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5255521205 is a deficient number, since it is larger than the sum of its proper divisors (1758233803).

5255521205 is a wasteful number, since it uses less digits than its factorization.

5255521205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 5255521205 is about 72494.9736533506. The cubic root of 5255521205 is about 1738.6223742484.

The spelling of 5255521205 in words is "five billion, two hundred fifty-five million, five hundred twenty-one thousand, two hundred five".