240717025 has 12 divisors (see below), whose sum is σ = 316047852. Its totient is φ = 181245440.

The previous prime is 240717013. The next prime is 240717049. The reversal of 240717025 is 520717042.

It can be written as a sum of positive squares in 6 ways, for example, as 19421649 + 221295376 = 4407^2 + 14876^2 .

It is a de Polignac number, because none of the positive numbers 2^k-240717025 is a prime.

It is a super-2 number, since 2×240717025² = 115889372249701250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240716984 and 240717002.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 282772 + ... + 283621.

It is an arithmetic number, because the mean of its divisors is an integer number (26337321).

Almost surely, 2^240717025 is an apocalyptic number.

240717025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240717025 is a deficient number, since it is larger than the sum of its proper divisors (75330827).

240717025 is a wasteful number, since it uses less digits than its factorization.

240717025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566420 (or 566415 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 240717025 is about 15515.0580082705. The cubic root of 240717025 is about 622.0647646089.

The spelling of 240717025 in words is "two hundred forty million, seven hundred seventeen thousand, twenty-five".