55206147547 has 8 divisors (see below), whose sum is σ = 58153841360. Its totient is φ = 52262664480.

The previous prime is 55206147499. The next prime is 55206147553. The reversal of 55206147547 is 74574160255.

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 55206147547 - 2²⁷ = 55071929819 is a prime.

It is a super-2 number, since 2×55206147547² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55206147497 and 55206147506.

It is not an unprimeable number, because it can be changed into a prime (55206147587) 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, 1025748 + ... + 1078225.

It is an arithmetic number, because the mean of its divisors is an integer number (7269230170).

Almost surely, 2^55206147547 is an apocalyptic number.

55206147547 is a deficient number, since it is larger than the sum of its proper divisors (2947693813).

55206147547 is a wasteful number, since it uses less digits than its factorization.

55206147547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105373.

The product of its (nonzero) digits is 1176000, while the sum is 46.

The spelling of 55206147547 in words is "fifty-five billion, two hundred six million, one hundred forty-seven thousand, five hundred forty-seven".