6536255121 has 32 divisors (see below), whose sum is σ = 10619043840. Its totient is φ = 3940592400.

The previous prime is 6536255071. The next prime is 6536255147. The reversal of 6536255121 is 1215526356.

6536255121 is a `hidden beast` number, since 6 + 5 + 3 + 625 + 5 + 1 + 21 = 666.

It is not a de Polignac number, because 6536255121 - 2¹⁹ = 6535730833 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6536255321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 885 + ... + 114338.

It is an arithmetic number, because the mean of its divisors is an integer number (331845120).

Almost surely, 2^6536255121 is an apocalyptic number.

It is an amenable number.

6536255121 is a deficient number, since it is larger than the sum of its proper divisors (4082788719).

6536255121 is a wasteful number, since it uses less digits than its factorization.

6536255121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115434 (or 115428 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 6536255121 is about 80847.1095401685. The cubic root of 6536255121 is about 1869.7189584985.

The spelling of 6536255121 in words is "six billion, five hundred thirty-six million, two hundred fifty-five thousand, one hundred twenty-one".