43425513 has 24 divisors (see below), whose sum is σ = 65085696. Its totient is φ = 27871200.

The previous prime is 43425479. The next prime is 43425523. The reversal of 43425513 is 31552434.

It is not a de Polignac number, because 43425513 - 2²¹ = 41328361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43425523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88198 + ... + 88688.

It is an arithmetic number, because the mean of its divisors is an integer number (2711904).

Almost surely, 2^43425513 is an apocalyptic number.

It is an amenable number.

43425513 is a deficient number, since it is larger than the sum of its proper divisors (21660183).

43425513 is a wasteful number, since it uses less digits than its factorization.

43425513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 842 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 43425513 is about 6589.8037148310. The cubic root of 43425513 is about 351.4916285110.

Adding to 43425513 its reverse (31552434), we get a palindrome (74977947).

The spelling of 43425513 in words is "forty-three million, four hundred twenty-five thousand, five hundred thirteen".