263798725 has 24 divisors (see below), whose sum is σ = 333460800. Its totient is φ = 206976000.

The previous prime is 263798723. The next prime is 263798737. The reversal of 263798725 is 527897362.

It is not a de Polignac number, because 263798725 - 2¹ = 263798723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263798723) 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 23 ways as a sum of consecutive naturals, for example, 587301 + ... + 587749.

It is an arithmetic number, because the mean of its divisors is an integer number (13894200).

Almost surely, 2^263798725 is an apocalyptic number.

263798725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263798725 is a deficient number, since it is larger than the sum of its proper divisors (69662075).

263798725 is a wasteful number, since it uses less digits than its factorization.

263798725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 856 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 263798725 is about 16241.8818183116. The cubic root of 263798725 is about 641.3437951379.

The spelling of 263798725 in words is "two hundred sixty-three million, seven hundred ninety-eight thousand, seven hundred twenty-five".