2538206533 has 4 divisors (see below), whose sum is σ = 2538488448. Its totient is φ = 2537924620.

The previous prime is 2538206521. The next prime is 2538206651. The reversal of 2538206533 is 3356028352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2538206533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2538206492 and 2538206501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538206833) 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, 126991 + ... + 145612.

It is an arithmetic number, because the mean of its divisors is an integer number (634622112).

Almost surely, 2^2538206533 is an apocalyptic number.

It is an amenable number.

2538206533 is a deficient number, since it is larger than the sum of its proper divisors (281915).

2538206533 is an equidigital number, since it uses as much as digits as its factorization.

2538206533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281914.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 2538206533 is about 50380.6166397356. The cubic root of 2538206533 is about 1364.0877825890.

The spelling of 2538206533 in words is "two billion, five hundred thirty-eight million, two hundred six thousand, five hundred thirty-three".