43425577 has 4 divisors (see below), whose sum is σ = 46766020. Its totient is φ = 40085136.

The previous prime is 43425563. The next prime is 43425607. The reversal of 43425577 is 77552434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28955161 + 14470416 = 5381^2 + 3804^2 .

It is not a de Polignac number, because 43425577 - 2¹⁵ = 43392809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43425527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670202 + ... + 1670227.

It is an arithmetic number, because the mean of its divisors is an integer number (11691505).

Almost surely, 2^43425577 is an apocalyptic number.

It is an amenable number.

43425577 is a deficient number, since it is larger than the sum of its proper divisors (3340443).

43425577 is a wasteful number, since it uses less digits than its factorization.

43425577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340442.

The product of its digits is 117600, while the sum is 37.

The square root of 43425577 is about 6589.8085708160. The cubic root of 43425577 is about 351.4918011856.

The spelling of 43425577 in words is "forty-three million, four hundred twenty-five thousand, five hundred seventy-seven".