43253600625 has 135 divisors (see below), whose sum is σ = 81143151661. Its totient is φ = 22195092000.

The previous prime is 43253600617. The next prime is 43253600639. The reversal of 43253600625 is 52600635234.

The square root of 43253600625 is 207975.

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

43253600625 is a `hidden beast` number, since 4 + 3 + 25 + 3 + 6 + 0 + 0 + 625 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3391082289 + 39862518336 = 58233^2 + 199656^2 .

It is not a de Polignac number, because 43253600625 - 2³ = 43253600617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43253600625.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 733111846 + ... + 733111904.

Almost surely, 2^43253600625 is an apocalyptic number.

43253600625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

43253600625 is the 207975-th square number.

43253600625 is the 103988-th centered octagonal number.

It is an amenable number.

43253600625 is a deficient number, since it is larger than the sum of its proper divisors (37889551036).

43253600625 is an frugal number, since it uses more digits than its factorization.

43253600625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Multiplying 43253600625 by its sum of digits (36), we get a square (1557129622500 = 1247850²).

The spelling of 43253600625 in words is "forty-three billion, two hundred fifty-three million, six hundred thousand, six hundred twenty-five".