53532145421 has 8 divisors (see below), whose sum is σ = 55400785920. Its totient is φ = 51665018608.

The previous prime is 53532145411. The next prime is 53532145439. The reversal of 53532145421 is 12454123535.

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 53532145421 - 2²⁶ = 53465036557 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 (53532145411) 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, 306221 + ... + 448146.

It is an arithmetic number, because the mean of its divisors is an integer number (6925098240).

Almost surely, 2^53532145421 is an apocalyptic number.

It is an amenable number.

53532145421 is a deficient number, since it is larger than the sum of its proper divisors (1868640499).

53532145421 is a wasteful number, since it uses less digits than its factorization.

53532145421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756843.

The product of its digits is 72000, while the sum is 35.

Adding to 53532145421 its reverse (12454123535), we get a palindrome (65986268956).

The spelling of 53532145421 in words is "fifty-three billion, five hundred thirty-two million, one hundred forty-five thousand, four hundred twenty-one".