56221152026543 has 64 divisors (see below), whose sum is σ = 70436555735040. Its totient is φ = 43801626241152.

The previous prime is 56221152026519. The next prime is 56221152026569. The reversal of 56221152026543 is 34562025112265.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56221152026543 - 2¹² = 56221152022447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56221152026494 and 56221152026503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56221152026443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 393185180 + ... + 393328142.

It is an arithmetic number, because the mean of its divisors is an integer number (1100571183360).

Almost surely, 2^{56221152026543} is an apocalyptic number.

56221152026543 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

56221152026543 is a deficient number, since it is larger than the sum of its proper divisors (14215403708497).

56221152026543 is a wasteful number, since it uses less digits than its factorization.

56221152026543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144276.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 56221152026543 in words is "fifty-six trillion, two hundred twenty-one billion, one hundred fifty-two million, twenty-six thousand, five hundred forty-three".