1224286925625 has 45 divisors (see below), whose sum is σ = 2209960491739. Its totient is φ = 652908768000.

The previous prime is 1224286925597. The next prime is 1224286925707. The reversal of 1224286925625 is 5265296824221.

The square root of 1224286925625 is 1106475.

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

1224286925625 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 2 + 8 + 6 + 9 + 2 + 5 + 625 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 950724452601 + 273562473024 = 975051^2 + 523032^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 1224286925625 - 2³⁷ = 1086847972153 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 (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 82978249 + ... + 82993001.

Almost surely, 2^{1224286925625} is an apocalyptic number.

1224286925625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1224286925625 is the 1106475-th square number.

1224286925625 is the 553238-th centered octagonal number.

It is an amenable number.

1224286925625 is a deficient number, since it is larger than the sum of its proper divisors (985673566114).

1224286925625 is an frugal number, since it uses more digits than its factorization.

1224286925625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29532 (or 14761 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 1224286925625 in words is "one trillion, two hundred twenty-four billion, two hundred eighty-six million, nine hundred twenty-five thousand, six hundred twenty-five".