53521345454120 has 32 divisors (see below), whose sum is σ = 120423297996000. Its totient is φ = 21408490052928.

The previous prime is 53521345454077. The next prime is 53521345454183. The reversal of 53521345454120 is 2145454312535.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20477231 + ... + 22942529.

It is an arithmetic number, because the mean of its divisors is an integer number (3763228062375).

Almost surely, 2^{53521345454120} is an apocalyptic number.

It is an amenable number.

53521345454120 is an abundant number, since it is smaller than the sum of its proper divisors (66901952541880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53521345454120 is a wasteful number, since it uses less digits than its factorization.

53521345454120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008057 (or 3008053 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 53521345454120 its reverse (2145454312535), we get a palindrome (55666799766655).

The spelling of 53521345454120 in words is "fifty-three trillion, five hundred twenty-one billion, three hundred forty-five million, four hundred fifty-four thousand, one hundred twenty".