2506804533 has 12 divisors (see below), whose sum is σ = 3626328940. Its totient is φ = 1668715776.

The previous prime is 2506804507. The next prime is 2506804607. The reversal of 2506804533 is 3354086052.

It is a happy number.

2506804533 is a `hidden beast` number, since 2 + 506 + 80 + 45 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1657548369 + 849256164 = 40713^2 + 29142^2 .

It is not a de Polignac number, because 2506804533 - 2⁸ = 2506804277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506804633) 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 11 ways as a sum of consecutive naturals, for example, 200878 + ... + 212991.

Almost surely, 2^2506804533 is an apocalyptic number.

It is an amenable number.

2506804533 is a deficient number, since it is larger than the sum of its proper divisors (1119524407).

2506804533 is a wasteful number, since it uses less digits than its factorization.

2506804533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414548 (or 414545 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2506804533 is about 50067.9990912359. Note that the first 3 decimals coincide. The cubic root of 2506804533 is about 1358.4390490930.

The spelling of 2506804533 in words is "two billion, five hundred six million, eight hundred four thousand, five hundred thirty-three".