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4152025 = 52166081
BaseRepresentation
bin1111110101101011011001
321210221111201
433311223121
52030331100
6224554201
750202013
oct17655331
97727451
104152025
112386529
121482961
13b24b27
147a11b3
1557036a
hex3f5ad9

4152025 has 6 divisors (see below), whose sum is σ = 5148542. Its totient is φ = 3321600.

The previous prime is 4152019. The next prime is 4152061. The reversal of 4152025 is 5202514.

It can be written as a sum of positive squares in 3 ways, for example, as 99856 + 4052169 = 316^2 + 2013^2 .

It is not a de Polignac number, because 4152025 - 213 = 4143833 is a prime.

It is a Duffinian number.

4152025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4151993 and 4152011.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83016 + ... + 83065.

Almost surely, 24152025 is an apocalyptic number.

It is an amenable number.

4152025 is a deficient number, since it is larger than the sum of its proper divisors (996517).

4152025 is a wasteful number, since it uses less digits than its factorization.

4152025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166091 (or 166086 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4152025 is about 2037.6518348334. The cubic root of 4152025 is about 160.7261912403.

Adding to 4152025 its reverse (5202514), we get a palindrome (9354539).

The spelling of 4152025 in words is "four million, one hundred fifty-two thousand, twenty-five".

Divisors: 1 5 25 166081 830405 4152025