2506541533 has 2 divisors, whose sum is σ = 2506541534. Its totient is φ = 2506541532.

The previous prime is 2506541501. The next prime is 2506541573. The reversal of 2506541533 is 3351456052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2350116484 + 156425049 = 48478^2 + 12507^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506541533 - 2⁵ = 2506541501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2506541573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253270766 + 1253270767.

It is an arithmetic number, because the mean of its divisors is an integer number (1253270767).

Almost surely, 2^2506541533 is an apocalyptic number.

It is an amenable number.

2506541533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506541533 is an equidigital number, since it uses as much as digits as its factorization.

2506541533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 2506541533 is about 50065.3725942392. The cubic root of 2506541533 is about 1358.3915408063.

Adding to 2506541533 its reverse (3351456052), we get a palindrome (5857997585).

The spelling of 2506541533 in words is "two billion, five hundred six million, five hundred forty-one thousand, five hundred thirty-three".