43001206225 has 24 divisors (see below), whose sum is σ = 54038985728. Its totient is φ = 33941073600.

The previous prime is 43001206219. The next prime is 43001206243. The reversal of 43001206225 is 52260210034.

It is a de Polignac number, because none of the positive numbers 2^k-43001206225 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43001206225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 537262 + ... + 612088.

Almost surely, 2^43001206225 is an apocalyptic number.

It is an amenable number.

43001206225 is a deficient number, since it is larger than the sum of its proper divisors (11037779503).

43001206225 is a wasteful number, since it uses less digits than its factorization.

43001206225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75145 (or 75140 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 43001206225 its reverse (52260210034), we get a palindrome (95261416259).

The spelling of 43001206225 in words is "forty-three billion, one million, two hundred six thousand, two hundred twenty-five".