6201085553 has 4 divisors (see below), whose sum is σ = 6678092148. Its totient is φ = 5724078960.

The previous prime is 6201085547. The next prime is 6201085603. The reversal of 6201085553 is 3555801026.

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 753612304 + 5447473249 = 27452^2 + 73807^2 .

It is a cyclic number.

It is not a de Polignac number, because 6201085553 - 2²⁰ = 6200036977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6201015553) 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 3 ways as a sum of consecutive naturals, for example, 238503278 + ... + 238503303.

It is an arithmetic number, because the mean of its divisors is an integer number (1669523037).

Almost surely, 2^6201085553 is an apocalyptic number.

It is an amenable number.

6201085553 is a deficient number, since it is larger than the sum of its proper divisors (477006595).

6201085553 is a wasteful number, since it uses less digits than its factorization.

6201085553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477006594.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 6201085553 is about 78746.9717068536. The cubic root of 6201085553 is about 1837.1977619915.

Adding to 6201085553 its reverse (3555801026), we get a palindrome (9756886579).

The spelling of 6201085553 in words is "six billion, two hundred one million, eighty-five thousand, five hundred fifty-three".