56028307147553 has 4 divisors (see below), whose sum is σ = 60338176928148. Its totient is φ = 51718437366960.

The previous prime is 56028307147517. The next prime is 56028307147573. The reversal of 56028307147553 is 35574170382065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20379012833344 + 35649294314209 = 4514312^2 + 5970703^2 .

It is not a de Polignac number, because 56028307147553 - 2¹⁰ = 56028307146529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56028307147573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2154934890278 + ... + 2154934890303.

It is an arithmetic number, because the mean of its divisors is an integer number (15084544232037).

Almost surely, 2^{56028307147553} is an apocalyptic number.

It is an amenable number.

56028307147553 is a deficient number, since it is larger than the sum of its proper divisors (4309869780595).

56028307147553 is a wasteful number, since it uses less digits than its factorization.

56028307147553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309869780594.

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 56028307147553 in words is "fifty-six trillion, twenty-eight billion, three hundred seven million, one hundred forty-seven thousand, five hundred fifty-three".