263332541 has 2 divisors, whose sum is σ = 263332542. Its totient is φ = 263332540.

The previous prime is 263332529. The next prime is 263332583. The reversal of 263332541 is 145233362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258727225 + 4605316 = 16085^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 263332541 - 2⁶ = 263332477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263332501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131666270 + 131666271.

It is an arithmetic number, because the mean of its divisors is an integer number (131666271).

Almost surely, 2^263332541 is an apocalyptic number.

It is an amenable number.

263332541 is a deficient number, since it is larger than the sum of its proper divisors (1).

263332541 is an equidigital number, since it uses as much as digits as its factorization.

263332541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 29.

The square root of 263332541 is about 16227.5241796153. The cubic root of 263332541 is about 640.9657790196.

The spelling of 263332541 in words is "two hundred sixty-three million, three hundred thirty-two thousand, five hundred forty-one".