55220106552 has 32 divisors (see below), whose sum is σ = 148669518480. Its totient is φ = 16990801920.

The previous prime is 55220106533. The next prime is 55220106563. The reversal of 55220106552 is 25560102255.

It is a super-2 number, since 2×55220106552² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88493449 + ... + 88494072.

Almost surely, 2^55220106552 is an apocalyptic number.

55220106552 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55220106552 is an abundant number, since it is smaller than the sum of its proper divisors (93449411928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55220106552 is a wasteful number, since it uses less digits than its factorization.

55220106552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176987543 (or 176987539 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 55220106552 in words is "fifty-five billion, two hundred twenty million, one hundred six thousand, five hundred fifty-two".