43540002325 has 6 divisors (see below), whose sum is σ = 53989602914. Its totient is φ = 34832001840.

The previous prime is 43540002323. The next prime is 43540002329. The reversal of 43540002325 is 52320004534.

43540002325 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 1451838609 + 42088163716 = 38103^2 + 205154^2 .

It is not a de Polignac number, because 43540002325 - 2¹ = 43540002323 is a prime.

It is a super-2 number, since 2×43540002325² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43540002293 and 43540002302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43540002323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 870800022 + ... + 870800071.

Almost surely, 2^43540002325 is an apocalyptic number.

It is an amenable number.

43540002325 is a deficient number, since it is larger than the sum of its proper divisors (10449600589).

43540002325 is a wasteful number, since it uses less digits than its factorization.

43540002325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741600103 (or 1741600098 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 43540002325 its reverse (52320004534), we get a palindrome (95860006859).

The spelling of 43540002325 in words is "forty-three billion, five hundred forty million, two thousand, three hundred twenty-five".