263425560 has 128 divisors (see below), whose sum is σ = 832032000. Its totient is φ = 66622976.

The previous prime is 263425499. The next prime is 263425567. The reversal of 263425560 is 65524362.

It is a super-2 number, since 2×263425560² = 138786051322627200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263425567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204679 + ... + 205961.

It is an arithmetic number, because the mean of its divisors is an integer number (6500250).

Almost surely, 2^263425560 is an apocalyptic number.

263425560 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 263425560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416016000).

263425560 is an abundant number, since it is smaller than the sum of its proper divisors (568606440).

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

263425560 is a wasteful number, since it uses less digits than its factorization.

263425560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 263425560 is about 16230.3900137982. The cubic root of 263425560 is about 641.0412412428.

The spelling of 263425560 in words is "two hundred sixty-three million, four hundred twenty-five thousand, five hundred sixty".