263503055 has 8 divisors (see below), whose sum is σ = 316677552. Its totient is φ = 210486528.

The previous prime is 263503021. The next prime is 263503057. The reversal of 263503055 is 550305362.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263503055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263503057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35789 + ... + 42518.

It is an arithmetic number, because the mean of its divisors is an integer number (39584694).

Almost surely, 2^263503055 is an apocalyptic number.

263503055 is a deficient number, since it is larger than the sum of its proper divisors (53174497).

263503055 is an equidigital number, since it uses as much as digits as its factorization.

263503055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78985.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 263503055 is about 16232.7771807538. Note that the first 3 decimals coincide. The cubic root of 263503055 is about 641.1040959640.

The spelling of 263503055 in words is "two hundred sixty-three million, five hundred three thousand, fifty-five".