55072184553 has 20 divisors (see below), whose sum is σ = 82722868228. Its totient is φ = 36511935840.

The previous prime is 55072184549. The next prime is 55072184579. The reversal of 55072184553 is 35548127055.

55072184553 is a `hidden beast` number, since 550 + 7 + 2 + 1 + 8 + 45 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29775918249 + 25296266304 = 172557^2 + 159048^2 .

It is not a de Polignac number, because 55072184553 - 2² = 55072184549 is a prime.

It is a super-2 number, since 2×55072184553² (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 = 55072184499 and 55072184508.

It is not an unprimeable number, because it can be changed into a prime (55072184543) 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 19 ways as a sum of consecutive naturals, for example, 1863526 + ... + 1892847.

Almost surely, 2^55072184553 is an apocalyptic number.

It is an amenable number.

55072184553 is a deficient number, since it is larger than the sum of its proper divisors (27650683675).

55072184553 is a wasteful number, since it uses less digits than its factorization.

55072184553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756566 (or 3756557 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The spelling of 55072184553 in words is "fifty-five billion, seventy-two million, one hundred eighty-four thousand, five hundred fifty-three".