263350155 has 16 divisors (see below), whose sum is σ = 423362304. Its totient is φ = 139786080.

The previous prime is 263350141. The next prime is 263350159. The reversal of 263350155 is 551053362.

It is not a de Polignac number, because 263350155 - 2¹² = 263346059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (263350159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38439 + ... + 44768.

It is an arithmetic number, because the mean of its divisors is an integer number (26460144).

Almost surely, 2^263350155 is an apocalyptic number.

263350155 is a deficient number, since it is larger than the sum of its proper divisors (160012149).

263350155 is a wasteful number, since it uses less digits than its factorization.

263350155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83426.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 263350155 is about 16228.0668904217. The cubic root of 263350155 is about 640.9800698468.

The spelling of 263350155 in words is "two hundred sixty-three million, three hundred fifty thousand, one hundred fifty-five".