43540525401 has 4 divisors (see below), whose sum is σ = 58054033872. Its totient is φ = 29027016932.

The previous prime is 43540525397. The next prime is 43540525417. The reversal of 43540525401 is 10452504534.

43540525401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43540525401 - 2² = 43540525397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43540525481) 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, 7256754231 + ... + 7256754236.

It is an arithmetic number, because the mean of its divisors is an integer number (14513508468).

Almost surely, 2^43540525401 is an apocalyptic number.

It is an amenable number.

43540525401 is a deficient number, since it is larger than the sum of its proper divisors (14513508471).

43540525401 is a wasteful number, since it uses less digits than its factorization.

43540525401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14513508470.

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

The spelling of 43540525401 in words is "forty-three billion, five hundred forty million, five hundred twenty-five thousand, four hundred one".