263631063 has 16 divisors (see below), whose sum is σ = 359064576. Its totient is φ = 171993120.

The previous prime is 263631047. The next prime is 263631089. The reversal of 263631063 is 360136362.

It is not a de Polignac number, because 263631063 - 2⁴ = 263631047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 263631063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263631013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66606 + ... + 70452.

It is an arithmetic number, because the mean of its divisors is an integer number (22441536).

Almost surely, 2^263631063 is an apocalyptic number.

263631063 is a deficient number, since it is larger than the sum of its proper divisors (95433513).

263631063 is a wasteful number, since it uses less digits than its factorization.

263631063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 263631063 is about 16236.7195886361. The cubic root of 263631063 is about 641.2078938340.

The spelling of 263631063 in words is "two hundred sixty-three million, six hundred thirty-one thousand, sixty-three".