243650052533 has 2 divisors, whose sum is σ = 243650052534. Its totient is φ = 243650052532.

The previous prime is 243650052517. The next prime is 243650052539. The reversal of 243650052533 is 335250056342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137743415044 + 105906637489 = 371138^2 + 325433^2 .

It is a cyclic number.

It is not a de Polignac number, because 243650052533 - 2⁴ = 243650052517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243650052539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121825026266 + 121825026267.

It is an arithmetic number, because the mean of its divisors is an integer number (121825026267).

Almost surely, 2^243650052533 is an apocalyptic number.

It is an amenable number.

243650052533 is a deficient number, since it is larger than the sum of its proper divisors (1).

243650052533 is an equidigital number, since it uses as much as digits as its factorization.

243650052533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 38.

The spelling of 243650052533 in words is "two hundred forty-three billion, six hundred fifty million, fifty-two thousand, five hundred thirty-three".