43025513 has 4 divisors (see below), whose sum is σ = 43042260. Its totient is φ = 43008768.

The previous prime is 43025491. The next prime is 43025527. The reversal of 43025513 is 31552034.

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 39037504 + 3988009 = 6248^2 + 1997^2 .

It is a cyclic number.

It is not a de Polignac number, because 43025513 - 2¹⁰ = 43024489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43025813) 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, 3620 + ... + 9957.

It is an arithmetic number, because the mean of its divisors is an integer number (10760565).

Almost surely, 2^43025513 is an apocalyptic number.

It is an amenable number.

43025513 is a deficient number, since it is larger than the sum of its proper divisors (16747).

43025513 is a wasteful number, since it uses less digits than its factorization.

43025513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16746.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 43025513 is about 6559.3835838438. The cubic root of 43025513 is about 350.4090808627.

Adding to 43025513 its reverse (31552034), we get a palindrome (74577547).

The spelling of 43025513 in words is "forty-three million, twenty-five thousand, five hundred thirteen".