43023225 has 72 divisors (see below), whose sum is σ = 86512320. Its totient is φ = 18775680.

The previous prime is 43023221. The next prime is 43023251. The reversal of 43023225 is 52232034.

43023225 = 903² + 904² + ... + 952².

It is not a de Polignac number, because 43023225 - 2² = 43023221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (43023221) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 84271 + ... + 84779.

It is an arithmetic number, because the mean of its divisors is an integer number (1201560).

Almost surely, 2^43023225 is an apocalyptic number.

It is an amenable number.

43023225 is an abundant number, since it is smaller than the sum of its proper divisors (43489095).

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

43023225 is a wasteful number, since it uses less digits than its factorization.

43023225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 43023225 is about 6559.2091748930. The cubic root of 43023225 is about 350.4028694303.

Adding to 43023225 its reverse (52232034), we get a palindrome (95255259).

The spelling of 43023225 in words is "forty-three million, twenty-three thousand, two hundred twenty-five".