43125516 has 72 divisors (see below), whose sum is σ = 131156480. Its totient is φ = 11671776.

The previous prime is 43125503. The next prime is 43125541. The reversal of 43125516 is 61552134.

It is a self number, because there is not a number n which added to its sum of digits gives 43125516.

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, 285 + ... + 9291.

Almost surely, 2^43125516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43125516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65578240).

43125516 is an abundant number, since it is smaller than the sum of its proper divisors (88030964).

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

43125516 is a wasteful number, since it uses less digits than its factorization.

43125516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043 (or 9038 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 43125516 is about 6567.0020557329. The cubic root of 43125516 is about 350.6803528194.

Subtracting from 43125516 its sum of digits (27), we obtain a square (43125489 = 6567²).

The spelling of 43125516 in words is "forty-three million, one hundred twenty-five thousand, five hundred sixteen".