53455132421200 has 30 divisors (see below), whose sum is σ = 128425955642894. Its totient is φ = 21382052968320.

The previous prime is 53455132421147. The next prime is 53455132421233. The reversal of 53455132421200 is 212423155435.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 183410053696 + 53271722367504 = 428264^2 + 7298748^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53455132421200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66818915127 + ... + 66818915926.

Almost surely, 2^{53455132421200} is an apocalyptic number.

53455132421200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53455132421200 is an abundant number, since it is smaller than the sum of its proper divisors (74970823221694).

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

53455132421200 is a wasteful number, since it uses less digits than its factorization.

53455132421200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133637831071 (or 133637831060 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 53455132421200 its reverse (212423155435), we get a palindrome (53667555576635).

The spelling of 53455132421200 in words is "fifty-three trillion, four hundred fifty-five billion, one hundred thirty-two million, four hundred twenty-one thousand, two hundred".