43401034553 has 4 divisors (see below), whose sum is σ = 43517391588. Its totient is φ = 43284677520.

The previous prime is 43401034519. The next prime is 43401034637. The reversal of 43401034553 is 35543010434.

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 36255206464 + 7145828089 = 190408^2 + 84533^2 .

It is a cyclic number.

It is not a de Polignac number, because 43401034553 - 2¹² = 43401030457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43401030553) 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, 58177958 + ... + 58178703.

It is an arithmetic number, because the mean of its divisors is an integer number (10879347897).

Almost surely, 2^43401034553 is an apocalyptic number.

It is an amenable number.

43401034553 is a deficient number, since it is larger than the sum of its proper divisors (116357035).

43401034553 is a wasteful number, since it uses less digits than its factorization.

43401034553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116357034.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 43401034553 its reverse (35543010434), we get a palindrome (78944044987).

The spelling of 43401034553 in words is "forty-three billion, four hundred one million, thirty-four thousand, five hundred fifty-three".