55472137547 has 4 divisors (see below), whose sum is σ = 55556314440. Its totient is φ = 55387960656.

The previous prime is 55472137507. The next prime is 55472137549. The reversal of 55472137547 is 74573127455.

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

It is a cyclic number.

It is not a de Polignac number, because 55472137547 - 2¹⁴ = 55472121163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55472137495 and 55472137504.

It is not an unprimeable number, because it can be changed into a prime (55472137549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42087458 + ... + 42088775.

It is an arithmetic number, because the mean of its divisors is an integer number (13889078610).

Almost surely, 2^55472137547 is an apocalyptic number.

55472137547 is a deficient number, since it is larger than the sum of its proper divisors (84176893).

55472137547 is an equidigital number, since it uses as much as digits as its factorization.

55472137547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84176892.

The product of its digits is 4116000, while the sum is 50.

The spelling of 55472137547 in words is "fifty-five billion, four hundred seventy-two million, one hundred thirty-seven thousand, five hundred forty-seven".