43240567725 has 18 divisors (see below), whose sum is σ = 77448661706. Its totient is φ = 23061636000.

The previous prime is 43240567723. The next prime is 43240567729. The reversal of 43240567725 is 52776504234.

43240567725 is a `hidden beast` number, since 43 + 2 + 40 + 567 + 7 + 2 + 5 = 666.

43240567725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4435236 + 43236132489 = 2106^2 + 207933^2 .

It is not a de Polignac number, because 43240567725 - 2¹ = 43240567723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43240567723) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96089926 + ... + 96090375.

Almost surely, 2^43240567725 is an apocalyptic number.

43240567725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43240567725 is a deficient number, since it is larger than the sum of its proper divisors (34208093981).

43240567725 is a wasteful number, since it uses less digits than its factorization.

43240567725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192180317 (or 192180309 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

The spelling of 43240567725 in words is "forty-three billion, two hundred forty million, five hundred sixty-seven thousand, seven hundred twenty-five".