288451660225 has 6 divisors (see below), whose sum is σ = 357680058710. Its totient is φ = 230761328160.

The previous prime is 288451660219. The next prime is 288451660241. The reversal of 288451660225 is 522066154882.

It can be written as a sum of positive squares in 3 ways, for example, as 6452426929 + 281999233296 = 80327^2 + 531036^2 .

It is not a de Polignac number, because 288451660225 - 2⁷ = 288451660097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5769033180 + ... + 5769033229.

Almost surely, 2^288451660225 is an apocalyptic number.

288451660225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

288451660225 is a deficient number, since it is larger than the sum of its proper divisors (69228398485).

288451660225 is a wasteful number, since it uses less digits than its factorization.

288451660225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11538066419 (or 11538066414 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 49.

It can be divided in two parts, 288451 and 660225, that added together give a square (948676 = 974²).

The spelling of 288451660225 in words is "two hundred eighty-eight billion, four hundred fifty-one million, six hundred sixty thousand, two hundred twenty-five".