43266080025 has 135 divisors (see below), whose sum is σ = 90725283519. Its totient is φ = 19708889760.

The previous prime is 43266080017. The next prime is 43266080029. The reversal of 43266080025 is 52008066234.

The square root of 43266080025 is 208005.

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

43266080025 is a `hidden beast` number, since 4 + 3 + 26 + 608 + 0 + 0 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15575788809 + 27690291216 = 124803^2 + 166404^2 .

It is not a de Polignac number, because 43266080025 - 2³ = 43266080017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43266080029) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 152883534 + ... + 152883816.

Almost surely, 2^43266080025 is an apocalyptic number.

43266080025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

43266080025 is the 208005-th square number.

43266080025 is the 104003-rd centered octagonal number.

It is an amenable number.

43266080025 is an abundant number, since it is smaller than the sum of its proper divisors (47459203494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43266080025 is an frugal number, since it uses more digits than its factorization.

43266080025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Multiplying 43266080025 by its sum of digits (36), we get a square (1557578880900 = 1248030²).

The spelling of 43266080025 in words is "forty-three billion, two hundred sixty-six million, eighty thousand, twenty-five".