4155506 has 4 divisors (see below), whose sum is σ = 6233262. Its totient is φ = 2077752.

The previous prime is 4155469. The next prime is 4155511. The reversal of 4155506 is 6055514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3644281 + 511225 = 1909^2 + 715^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038875 + ... + 1038878.

Almost surely, 2^4155506 is an apocalyptic number.

4155506 is a deficient number, since it is larger than the sum of its proper divisors (2077756).

4155506 is a wasteful number, since it uses less digits than its factorization.

4155506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077755.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 4155506 is about 2038.5058253535. The cubic root of 4155506 is about 160.7710955612.

The spelling of 4155506 in words is "four million, one hundred fifty-five thousand, five hundred six".