43545925 has 12 divisors (see below), whose sum is σ = 57173796. Its totient is φ = 32787200.

The previous prime is 43545911. The next prime is 43545949. The reversal of 43545925 is 52954534.

It can be written as a sum of positive squares in 6 ways, for example, as 3818116 + 39727809 = 1954^2 + 6303^2 .

It is not a de Polignac number, because 43545925 - 2⁵ = 43545893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50806 + ... + 51655.

It is an arithmetic number, because the mean of its divisors is an integer number (4764483).

Almost surely, 2^43545925 is an apocalyptic number.

It is an amenable number.

43545925 is a deficient number, since it is larger than the sum of its proper divisors (13627871).

43545925 is a wasteful number, since it uses less digits than its factorization.

43545925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102488 (or 102483 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The square root of 43545925 is about 6598.9336259732. The cubic root of 43545925 is about 351.8162053795.

It can be divided in two parts, 435 and 45925, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 43545925 in words is "forty-three million, five hundred forty-five thousand, nine hundred twenty-five".