54513200205421 has 8 divisors (see below), whose sum is σ = 58666086239544. Its totient is φ = 50465450526720.

The previous prime is 54513200205407. The next prime is 54513200205463. The reversal of 54513200205421 is 12450200231545.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 709713578025 + 53803486627396 = 842445^2 + 7335086^2 .

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 54513200205421 - 2⁵ = 54513200205389 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 (54513200805421) 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, 26284087780 + ... + 26284089853.

It is an arithmetic number, because the mean of its divisors is an integer number (7333260779943).

Almost surely, 2^{54513200205421} is an apocalyptic number.

It is an amenable number.

54513200205421 is a deficient number, since it is larger than the sum of its proper divisors (4152886034123).

54513200205421 is a wasteful number, since it uses less digits than its factorization.

54513200205421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52568177711.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 54513200205421 its reverse (12450200231545), we get a palindrome (66963400436966).

The spelling of 54513200205421 in words is "fifty-four trillion, five hundred thirteen billion, two hundred million, two hundred five thousand, four hundred twenty-one".