43425025 has 18 divisors (see below), whose sum is σ = 62640150. Its totient is φ = 29776320.

The previous prime is 43424981. The next prime is 43425029. The reversal of 43425025 is 52052434.

It can be written as a sum of positive squares in 3 ways, for example, as 1317904 + 42107121 = 1148^2 + 6489^2 .

It is not a de Polignac number, because 43425025 - 2²¹ = 41327873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (43425029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16500 + ... + 18949.

Almost surely, 2^43425025 is an apocalyptic number.

It is an amenable number.

43425025 is a deficient number, since it is larger than the sum of its proper divisors (19215125).

43425025 is a wasteful number, since it uses less digits than its factorization.

43425025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35473 (or 35461 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 43425025 is about 6589.7666878274. The cubic root of 43425025 is about 351.4903118614.

Adding to 43425025 its reverse (52052434), we get a palindrome (95477459).

The spelling of 43425025 in words is "forty-three million, four hundred twenty-five thousand, twenty-five".