263559623 has 2 divisors, whose sum is σ = 263559624. Its totient is φ = 263559622.

The previous prime is 263559617. The next prime is 263559629. The reversal of 263559623 is 326955362.

It is a balanced prime because it is at equal distance from previous prime (263559617) and next prime (263559629).

It is a cyclic number.

It is not a de Polignac number, because 263559623 - 2⁴ = 263559607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263559629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131779811 + 131779812.

It is an arithmetic number, because the mean of its divisors is an integer number (131779812).

Almost surely, 2^263559623 is an apocalyptic number.

263559623 is a deficient number, since it is larger than the sum of its proper divisors (1).

263559623 is an equidigital number, since it uses as much as digits as its factorization.

263559623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 41.

The square root of 263559623 is about 16234.5194878075. The cubic root of 263559623 is about 641.1499694127.

The spelling of 263559623 in words is "two hundred sixty-three million, five hundred fifty-nine thousand, six hundred twenty-three".