263051061 has 48 divisors (see below), whose sum is σ = 442411200. Its totient is φ = 137797632.

The previous prime is 263051051. The next prime is 263051071. The reversal of 263051061 is 160150362.

It is an interprime number because it is at equal distance from previous prime (263051051) and next prime (263051071).

It is not a de Polignac number, because 263051061 - 2¹¹ = 263049013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263051021) 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 47 ways as a sum of consecutive naturals, for example, 341685 + ... + 342453.

It is an arithmetic number, because the mean of its divisors is an integer number (9216900).

Almost surely, 2^263051061 is an apocalyptic number.

263051061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

263051061 is a deficient number, since it is larger than the sum of its proper divisors (179360139).

263051061 is a wasteful number, since it uses less digits than its factorization.

263051061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 263051061 is about 16218.8489418947. The cubic root of 263051061 is about 640.7373183703.

The spelling of 263051061 in words is "two hundred sixty-three million, fifty-one thousand, sixty-one".