43323145425 has 54 divisors (see below), whose sum is σ = 90265417398. Its totient is φ = 19804861440.

The previous prime is 43323145417. The next prime is 43323145427. The reversal of 43323145425 is 52454132334.

43323145425 is a `hidden beast` number, since 4 + 332 + 314 + 5 + 4 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1820899584 + 41502245841 = 42672^2 + 203721^2 .

It is not a de Polignac number, because 43323145425 - 2³ = 43323145417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43323145425.

It is not an unprimeable number, because it can be changed into a prime (43323145427) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1953744 + ... + 1975793.

Almost surely, 2^43323145425 is an apocalyptic number.

43323145425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43323145425 is an abundant number, since it is smaller than the sum of its proper divisors (46942271973).

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

43323145425 is a wasteful number, since it uses less digits than its factorization.

43323145425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929567 (or 3929552 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

Adding to 43323145425 its reverse (52454132334), we get a palindrome (95777277759).

The spelling of 43323145425 in words is "forty-three billion, three hundred twenty-three million, one hundred forty-five thousand, four hundred twenty-five".