10255720 has 16 divisors (see below), whose sum is σ = 23075460. Its totient is φ = 4102272.

The previous prime is 10255717. The next prime is 10255727. The reversal of 10255720 is 2755201.

It can be written as a sum of positive squares in 2 ways, for example, as 10252804 + 2916 = 3202^2 + 54^2 .

It is a super-3 number, since 3×10255720³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10255691 and 10255700.

It is not an unprimeable number, because it can be changed into a prime (10255727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128157 + ... + 128236.

Almost surely, 2^10255720 is an apocalyptic number.

10255720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10255720 is an abundant number, since it is smaller than the sum of its proper divisors (12819740).

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

10255720 is a wasteful number, since it uses less digits than its factorization.

10255720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256404 (or 256400 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 10255720 is about 3202.4553080410. The cubic root of 10255720 is about 217.2644739843.

The spelling of 10255720 in words is "ten million, two hundred fifty-five thousand, seven hundred twenty".