4252525 has 6 divisors (see below), whose sum is σ = 5273162. Its totient is φ = 3402000.

The previous prime is 4252519. The next prime is 4252541. The reversal of 4252525 is 5252524.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 17161 + 4235364 = 131^2 + 2058^2 .

It is not a de Polignac number, because 4252525 - 2¹³ = 4244333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 170101 = 4252525 / (4 + 2 + 5 + 2 + 5 + 2 + 5).

It is a Duffinian number.

4252525 is a modest number, since divided by 2525 gives 425 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 4252525.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 85026 + ... + 85075.

Almost surely, 2^4252525 is an apocalyptic number.

It is an amenable number.

4252525 is a deficient number, since it is larger than the sum of its proper divisors (1020637).

4252525 is a wasteful number, since it uses less digits than its factorization.

4252525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170111 (or 170106 counting only the distinct ones).

The product of its digits is 4000, while the sum is 25.

The square root of 4252525 is about 2062.1651243293. The cubic root of 4252525 is about 162.0126622222.

Subtracting 4252525 from its reverse (5252524), we obtain a palindrome (999999).

It can be divided in two parts, 42 and 52525, that multiplied together give a triangular number (2206050 = T₂₁₀₀).

The spelling of 4252525 in words is "four million, two hundred fifty-two thousand, five hundred twenty-five".