4156025 has 12 divisors (see below), whose sum is σ = 5293932. Its totient is φ = 3234240.

The previous prime is 4156001. The next prime is 4156037. The reversal of 4156025 is 5206514.

It can be written as a sum of positive squares in 6 ways, for example, as 781456 + 3374569 = 884^2 + 1837^2 .

It is not a de Polignac number, because 4156025 - 2¹² = 4151929 is a prime.

It is a Duffinian number.

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, 1322 + ... + 3171.

It is an arithmetic number, because the mean of its divisors is an integer number (441161).

Almost surely, 2^4156025 is an apocalyptic number.

It is an amenable number.

4156025 is a deficient number, since it is larger than the sum of its proper divisors (1137907).

4156025 is a wasteful number, since it uses less digits than its factorization.

4156025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540 (or 4535 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 4156025 is about 2038.6331205001. The cubic root of 4156025 is about 160.7777884265. Note that the first 4 decimals are identical.

It can be divided in two parts, 4 and 156025, that multiplied together give a square (624100 = 790²).

The spelling of 4156025 in words is "four million, one hundred fifty-six thousand, twenty-five".