240505225 has 12 divisors (see below), whose sum is σ = 298525660. Its totient is φ = 192211200.

The previous prime is 240505219. The next prime is 240505247. The reversal of 240505225 is 522505042.

It is a happy number.

240505225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 35557369 + 204947856 = 5963^2 + 14316^2 .

It is not a de Polignac number, because 240505225 - 2⁵ = 240505193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 240505225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23965 + ... + 32485.

Almost surely, 2^240505225 is an apocalyptic number.

240505225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240505225 is a deficient number, since it is larger than the sum of its proper divisors (58020435).

240505225 is a wasteful number, since it uses less digits than its factorization.

240505225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660 (or 9655 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 240505225 is about 15508.2308791171. The cubic root of 240505225 is about 621.8822654303.

The spelling of 240505225 in words is "two hundred forty million, five hundred five thousand, two hundred twenty-five".