263781625 has 32 divisors (see below), whose sum is σ = 342351360. Its totient is φ = 202768000.

The previous prime is 263781607. The next prime is 263781701. The reversal of 263781625 is 526187362.

It is not a de Polignac number, because 263781625 - 2⁹ = 263781113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346245 + ... + 347005.

It is an arithmetic number, because the mean of its divisors is an integer number (10698480).

Almost surely, 2^263781625 is an apocalyptic number.

263781625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263781625 is a deficient number, since it is larger than the sum of its proper divisors (78569735).

263781625 is an equidigital number, since it uses as much as digits as its factorization.

263781625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 872 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 263781625 is about 16241.3553929467. The cubic root of 263781625 is about 641.3299370777.

The spelling of 263781625 in words is "two hundred sixty-three million, seven hundred eighty-one thousand, six hundred twenty-five".