263055960 has 192 divisors, whose sum is σ = 923438880. Its totient is φ = 64696320.

The previous prime is 263055917. The next prime is 263055979. The reversal of 263055960 is 69550362.

263055960 is a `hidden beast` number, since 2 + 63 + 0 + 5 + 596 + 0 = 666.

It is a Cunningham number, because it is equal to 16219²-1.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 323955 + ... + 324765.

Almost surely, 2^263055960 is an apocalyptic number.

263055960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263055960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461719440).

263055960 is an abundant number, since it is smaller than the sum of its proper divisors (660382920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263055960 is a wasteful number, since it uses less digits than its factorization.

263055960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 263055960 is about 16218.9999691720. Note that the first 4 decimals coincide. The cubic root of 263055960 is about 640.7412959918.

The spelling of 263055960 in words is "two hundred sixty-three million, fifty-five thousand, nine hundred sixty".