43001025 has 24 divisors (see below), whose sum is σ = 71584704. Its totient is φ = 22776000.

The previous prime is 43001011. The next prime is 43001027. The reversal of 43001025 is 52010034.

It is not a de Polignac number, because 43001025 - 2⁷ = 43000897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 43000995 and 43001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43001027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9427 + ... + 13223.

It is an arithmetic number, because the mean of its divisors is an integer number (2982696).

Almost surely, 2^43001025 is an apocalyptic number.

It is an amenable number.

43001025 is a deficient number, since it is larger than the sum of its proper divisors (28583679).

43001025 is a wasteful number, since it uses less digits than its factorization.

43001025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 43001025 is about 6557.5166793535. The cubic root of 43001025 is about 350.3425897243.

Adding to 43001025 its reverse (52010034), we get a palindrome (95011059).

Subtracting 43001025 from its reverse (52010034), we obtain a palindrome (9009009).

The spelling of 43001025 in words is "forty-three million, one thousand, twenty-five".