1224650025 has 27 divisors (see below), whose sum is σ = 2194424869. Its totient is φ = 652866720.

The previous prime is 1224650017. The next prime is 1224650047. The reversal of 1224650025 is 5200564221.

The square root of 1224650025 is 34995.

It is a perfect power (a square), and thus also a powerful number.

1224650025 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 650 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 108555561 + 1116094464 = 10419^2 + 33408^2 .

It is not a de Polignac number, because 1224650025 - 2³ = 1224650017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 523759 + ... + 526091.

Almost surely, 2^1224650025 is an apocalyptic number.

1224650025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1224650025 is the 34995-th square number.

1224650025 is the 17498-th centered octagonal number.

It is an amenable number.

1224650025 is a deficient number, since it is larger than the sum of its proper divisors (969774844).

1224650025 is an frugal number, since it uses more digits than its factorization.

1224650025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4682 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The cubic root of 1224650025 is about 1069.8855745691.

It can be divided in two parts, 1224 and 650025, that added together give a square (651249 = 807²).

The spelling of 1224650025 in words is "one billion, two hundred twenty-four million, six hundred fifty thousand, twenty-five".