43525242051 has 4 divisors (see below), whose sum is σ = 58033656072. Its totient is φ = 29016828032.

The previous prime is 43525242043. The next prime is 43525242121. The reversal of 43525242051 is 15024252534.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 43525242051 - 2³ = 43525242043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43525242031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7254207006 + ... + 7254207011.

It is an arithmetic number, because the mean of its divisors is an integer number (14508414018).

Almost surely, 2^43525242051 is an apocalyptic number.

43525242051 is a deficient number, since it is larger than the sum of its proper divisors (14508414021).

43525242051 is a wasteful number, since it uses less digits than its factorization.

43525242051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14508414020.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 43525242051 its reverse (15024252534), we get a palindrome (58549494585).

The spelling of 43525242051 in words is "forty-three billion, five hundred twenty-five million, two hundred forty-two thousand, fifty-one".