53556780784423 has 8 divisors (see below), whose sum is σ = 61211859972480. Its totient is φ = 45902729222520.

The previous prime is 53556780784411. The next prime is 53556780784469. The reversal of 53556780784423 is 32448708765535.

It is a happy number.

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 53556780784423 - 2²¹ = 53556778687271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53556780784223) 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, 256794853 + ... + 257003326.

It is an arithmetic number, because the mean of its divisors is an integer number (7651482496560).

Almost surely, 2^{53556780784423} is an apocalyptic number.

53556780784423 is a deficient number, since it is larger than the sum of its proper divisors (7655079188057).

53556780784423 is a wasteful number, since it uses less digits than its factorization.

53556780784423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513813077.

The product of its (nonzero) digits is 677376000, while the sum is 67.

The spelling of 53556780784423 in words is "fifty-three trillion, five hundred fifty-six billion, seven hundred eighty million, seven hundred eighty-four thousand, four hundred twenty-three".