53445401324021 has 8 divisors (see below), whose sum is σ = 64295219638080. Its totient is φ = 43399273255488.

The previous prime is 53445401324017. The next prime is 53445401324041. The reversal of 53445401324021 is 12042310454435.

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

It is a cyclic number.

It is not a de Polignac number, because 53445401324021 - 2² = 53445401324017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53445401324041) 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, 200922561236 + ... + 200922561501.

It is an arithmetic number, because the mean of its divisors is an integer number (8036902454760).

Almost surely, 2^{53445401324021} is an apocalyptic number.

It is an amenable number.

53445401324021 is a deficient number, since it is larger than the sum of its proper divisors (10849818314059).

53445401324021 is a wasteful number, since it uses less digits than its factorization.

53445401324021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401845122763.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 53445401324021 its reverse (12042310454435), we get a palindrome (65487711778456).

The spelling of 53445401324021 in words is "fifty-three trillion, four hundred forty-five billion, four hundred one million, three hundred twenty-four thousand, twenty-one".