43725045 has 64 divisors (see below), whose sum is σ = 87220224. Its totient is φ = 18213120.

The previous prime is 43725007. The next prime is 43725067. The reversal of 43725045 is 54052734.

It is not a de Polignac number, because 43725045 - 2⁷ = 43724917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140440 + ... + 140750.

It is an arithmetic number, because the mean of its divisors is an integer number (1362816).

Almost surely, 2^43725045 is an apocalyptic number.

It is an amenable number.

43725045 is a deficient number, since it is larger than the sum of its proper divisors (43495179).

43725045 is a wasteful number, since it uses less digits than its factorization.

43725045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 43725045 is about 6612.4915878964. The cubic root of 43725045 is about 352.2979275410.

Adding to 43725045 its reverse (54052734), we get a palindrome (97777779).

The spelling of 43725045 in words is "forty-three million, seven hundred twenty-five thousand, forty-five".