55165552 has 40 divisors (see below), whose sum is σ = 115593296. Its totient is φ = 25353216.

The previous prime is 55165547. The next prime is 55165553. The reversal of 55165552 is 25556155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55165553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69703 + ... + 70489.

Almost surely, 2^55165552 is an apocalyptic number.

55165552 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55165552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57796648).

55165552 is an abundant number, since it is smaller than the sum of its proper divisors (60427744).

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

55165552 is a wasteful number, since it uses less digits than its factorization.

55165552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1139 counting only the distinct ones).

The product of its digits is 37500, while the sum is 34.

The square root of 55165552 is about 7427.3516141354. The cubic root of 55165552 is about 380.6764313776.

The spelling of 55165552 in words is "fifty-five million, one hundred sixty-five thousand, five hundred fifty-two".