43544320053 has 8 divisors (see below), whose sum is σ = 62525177568. Its totient is φ = 26796504624.

The previous prime is 43544320037. The next prime is 43544320063. The reversal of 43544320053 is 35002344534.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43544320053 - 2⁴ = 43544320037 is a prime.

It is a super-2 number, since 2×43544320053² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 43544319996 and 43544320023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43544320063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558260475 + ... + 558260552.

It is an arithmetic number, because the mean of its divisors is an integer number (7815647196).

Almost surely, 2^43544320053 is an apocalyptic number.

It is an amenable number.

43544320053 is a deficient number, since it is larger than the sum of its proper divisors (18980857515).

43544320053 is a wasteful number, since it uses less digits than its factorization.

43544320053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116521043.

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 43544320053 its reverse (35002344534), we get a palindrome (78546664587).

The spelling of 43544320053 in words is "forty-three billion, five hundred forty-four million, three hundred twenty thousand, fifty-three".