55513220055 has 8 divisors (see below), whose sum is σ = 88821152112. Its totient is φ = 29607050688.

The previous prime is 55513220053. The next prime is 55513220089. The reversal of 55513220055 is 55002231555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55513220055 - 2¹ = 55513220053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55513219998 and 55513220025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55513220051) 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, 1850440654 + ... + 1850440683.

It is an arithmetic number, because the mean of its divisors is an integer number (11102644014).

Almost surely, 2^55513220055 is an apocalyptic number.

55513220055 is a deficient number, since it is larger than the sum of its proper divisors (33307932057).

55513220055 is a wasteful number, since it uses less digits than its factorization.

55513220055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700881345.

The product of its (nonzero) digits is 37500, while the sum is 33.

The spelling of 55513220055 in words is "fifty-five billion, five hundred thirteen million, two hundred twenty thousand, fifty-five".