43481025 has 72 divisors (see below), whose sum is σ = 93753920. Its totient is φ = 18817920.

The previous prime is 43481023. The next prime is 43481051. The reversal of 43481025 is 52018434.

It is not a de Polignac number, because 43481025 - 2¹ = 43481023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43481025.

It is not an unprimeable number, because it can be changed into a prime (43481023) 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, 29199 + ... + 30651.

Almost surely, 2^43481025 is an apocalyptic number.

43481025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43481025 is an abundant number, since it is smaller than the sum of its proper divisors (50272895).

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

43481025 is a wasteful number, since it uses less digits than its factorization.

43481025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 43481025 is about 6594.0143311946. The cubic root of 43481025 is about 351.6413384672.

Adding to 43481025 its reverse (52018434), we get a palindrome (95499459).

The spelling of 43481025 in words is "forty-three million, four hundred eighty-one thousand, twenty-five".