2506644533 has 2 divisors, whose sum is σ = 2506644534. Its totient is φ = 2506644532.

The previous prime is 2506644529. The next prime is 2506644583. The reversal of 2506644533 is 3354466052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2484723409 + 21921124 = 49847^2 + 4682^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506644533 - 2² = 2506644529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2506644583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253322266 + 1253322267.

It is an arithmetic number, because the mean of its divisors is an integer number (1253322267).

Almost surely, 2^2506644533 is an apocalyptic number.

It is an amenable number.

2506644533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506644533 is an equidigital number, since it uses as much as digits as its factorization.

2506644533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 38.

The square root of 2506644533 is about 50066.4012387549. The cubic root of 2506644533 is about 1358.4101471091.

The spelling of 2506644533 in words is "two billion, five hundred six million, six hundred forty-four thousand, five hundred thirty-three".