53424430210021 has 16 divisors (see below), whose sum is σ = 58565795238720. Its totient is φ = 48432082561920.

The previous prime is 53424430209967. The next prime is 53424430210031. The reversal of 53424430210021 is 12001203442435.

It is a cyclic number.

It is not a de Polignac number, because 53424430210021 - 2¹⁹ = 53424429685733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53424430210031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32921995 + ... + 34506616.

It is an arithmetic number, because the mean of its divisors is an integer number (3660362202420).

Almost surely, 2^{53424430210021} is an apocalyptic number.

It is an amenable number.

53424430210021 is a deficient number, since it is larger than the sum of its proper divisors (5141365028699).

53424430210021 is a wasteful number, since it uses less digits than its factorization.

53424430210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67429716.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 53424430210021 its reverse (12001203442435), we get a palindrome (65425633652456).

The spelling of 53424430210021 in words is "fifty-three trillion, four hundred twenty-four billion, four hundred thirty million, two hundred ten thousand, twenty-one".