235553 has 2 divisors, whose sum is σ = 235554. Its totient is φ = 235552.

The previous prime is 235541. The next prime is 235559. The reversal of 235553 is 355532.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222784 + 12769 = 472^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 235553 - 2⁴ = 235537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (235559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117776 + 117777.

It is an arithmetic number, because the mean of its divisors is an integer number (117777).

2²³⁵⁵⁵³ is an apocalyptic number.

It is an amenable number.

235553 is a deficient number, since it is larger than the sum of its proper divisors (1).

235553 is an equidigital number, since it uses as much as digits as its factorization.

235553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2250, while the sum is 23.

The square root of 235553 is about 485.3380265341. The cubic root of 235553 is about 61.7584252028.

The spelling of 235553 in words is "two hundred thirty-five thousand, five hundred fifty-three".