242533253 has 2 divisors, whose sum is σ = 242533254. Its totient is φ = 242533252.

The previous prime is 242533189. The next prime is 242533273. The reversal of 242533253 is 352335242.

242533253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152226244 + 90307009 = 12338^2 + 9503^2 .

It is a cyclic number.

It is not a de Polignac number, because 242533253 - 2⁶ = 242533189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242533273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121266626 + 121266627.

It is an arithmetic number, because the mean of its divisors is an integer number (121266627).

Almost surely, 2^242533253 is an apocalyptic number.

It is an amenable number.

242533253 is a deficient number, since it is larger than the sum of its proper divisors (1).

242533253 is an equidigital number, since it uses as much as digits as its factorization.

242533253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 29.

The square root of 242533253 is about 15573.4791552819. The cubic root of 242533253 is about 623.6253546703.

Adding to 242533253 its reverse (352335242), we get a palindrome (594868495).

The spelling of 242533253 in words is "two hundred forty-two million, five hundred thirty-three thousand, two hundred fifty-three".