25493045492533 has 2 divisors, whose sum is σ = 25493045492534. Its totient is φ = 25493045492532.

The previous prime is 25493045492527. The next prime is 25493045492623. The reversal of 25493045492533 is 33529454039452.

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., 18107467452369 + 7385578040164 = 4255287^2 + 2717642^2 .

It is a cyclic number.

It is not a de Polignac number, because 25493045492533 - 2⁵ = 25493045492501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25493045496533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12746522746266 + 12746522746267.

It is an arithmetic number, because the mean of its divisors is an integer number (12746522746267).

Almost surely, 2^{25493045492533} is an apocalyptic number.

It is an amenable number.

25493045492533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25493045492533 is an equidigital number, since it uses as much as digits as its factorization.

25493045492533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984000, while the sum is 58.

The spelling of 25493045492533 in words is "twenty-five trillion, four hundred ninety-three billion, forty-five million, four hundred ninety-two thousand, five hundred thirty-three".