56472720547 has 4 divisors (see below), whose sum is σ = 57031856496. Its totient is φ = 55913584600.

The previous prime is 56472720497. The next prime is 56472720581. The reversal of 56472720547 is 74502727465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74502727465 = 5 ⋅14900545493.

It is a cyclic number.

It is not a de Polignac number, because 56472720547 - 2⁷ = 56472720419 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56472720547.

It is not an unprimeable number, because it can be changed into a prime (56472720347) 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, 279567823 + ... + 279568024.

It is an arithmetic number, because the mean of its divisors is an integer number (14257964124).

Almost surely, 2^56472720547 is an apocalyptic number.

56472720547 is a deficient number, since it is larger than the sum of its proper divisors (559135949).

56472720547 is a wasteful number, since it uses less digits than its factorization.

56472720547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559135948.

The product of its (nonzero) digits is 3292800, while the sum is 49.

The spelling of 56472720547 in words is "fifty-six billion, four hundred seventy-two million, seven hundred twenty thousand, five hundred forty-seven".