43453125 has 56 divisors (see below), whose sum is σ = 81248960. Its totient is φ = 22950000.

The previous prime is 43453099. The next prime is 43453127. The reversal of 43453125 is 52135434.

43453125 is a `hidden beast` number, since 4 + 345 + 312 + 5 = 666.

It is not a de Polignac number, because 43453125 - 2⁹ = 43452613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43453127) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 421824 + ... + 421926.

Almost surely, 2^43453125 is an apocalyptic number.

43453125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43453125 is a deficient number, since it is larger than the sum of its proper divisors (37795835).

43453125 is an frugal number, since it uses more digits than its factorization.

43453125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 111 counting only the distinct ones).

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

The square root of 43453125 is about 6591.8984367176. The cubic root of 43453125 is about 351.5661110740.

Adding to 43453125 its reverse (52135434), we get a palindrome (95588559).

The spelling of 43453125 in words is "forty-three million, four hundred fifty-three thousand, one hundred twenty-five".