4155825 has 12 divisors (see below), whose sum is σ = 6871088. Its totient is φ = 2216400.

The previous prime is 4155797. The next prime is 4155839. The reversal of 4155825 is 5285514.

It is not a de Polignac number, because 4155825 - 2⁵ = 4155793 is a prime.

It is a Duffinian number.

4155825 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4155792 and 4155801.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27631 + ... + 27780.

Almost surely, 2^4155825 is an apocalyptic number.

It is an amenable number.

4155825 is a deficient number, since it is larger than the sum of its proper divisors (2715263).

4155825 is a wasteful number, since it uses less digits than its factorization.

4155825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55424 (or 55419 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 4155825 is about 2038.5840674350. The cubic root of 4155825 is about 160.7752093536.

The spelling of 4155825 in words is "four million, one hundred fifty-five thousand, eight hundred twenty-five".