43345225 has 72 divisors (see below), whose sum is σ = 71245440. Its totient is φ = 25555200.

The previous prime is 43345219. The next prime is 43345231. The reversal of 43345225 is 52254334.

It is an interprime number because it is at equal distance from previous prime (43345219) and next prime (43345231).

It is not a de Polignac number, because 43345225 - 2⁵ = 43345193 is a prime.

It is a super-3 number, since 3×43345225³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43345193 and 43345202.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 486981 + ... + 487069.

It is an arithmetic number, because the mean of its divisors is an integer number (989520).

Almost surely, 2^43345225 is an apocalyptic number.

It is an amenable number.

43345225 is a deficient number, since it is larger than the sum of its proper divisors (27900215).

43345225 is a wasteful number, since it uses less digits than its factorization.

43345225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 135 counting only the distinct ones).

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

The square root of 43345225 is about 6583.7090610081. The cubic root of 43345225 is about 351.2748744431.

Adding to 43345225 its reverse (52254334), we get a palindrome (95599559).

It can be divided in two parts, 4334 and 5225, that added together give a palindrome (9559).

The spelling of 43345225 in words is "forty-three million, three hundred forty-five thousand, two hundred twenty-five".