4155552 has 72 divisors (see below), whose sum is σ = 12108096. Its totient is φ = 1351296.

The previous prime is 4155551. The next prime is 4155583. The reversal of 4155552 is 2555514.

4155552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×4155552² = 34537224849408, which contains 22 as substring.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (4155551) 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 11 ways as a sum of consecutive naturals, for example, 13383 + ... + 13689.

It is an arithmetic number, because the mean of its divisors is an integer number (168168).

Almost surely, 2^4155552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4155552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6054048).

4155552 is an abundant number, since it is smaller than the sum of its proper divisors (7952544).

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

4155552 is a wasteful number, since it uses less digits than its factorization.

4155552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 359 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 4155552 is about 2038.5171080960. The cubic root of 4155552 is about 160.7716887856.

The spelling of 4155552 in words is "four million, one hundred fifty-five thousand, five hundred fifty-two".