4200005525 has 12 divisors (see below), whose sum is σ = 5234449572. Its totient is φ = 3342944640.

The previous prime is 4200005507. The next prime is 4200005527. The reversal of 4200005525 is 5255000024.

It can be written as a sum of positive squares in 6 ways, for example, as 29170801 + 4170834724 = 5401^2 + 64582^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4200005525 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4200005525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4200005527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421472 + ... + 431321.

It is an arithmetic number, because the mean of its divisors is an integer number (436204131).

Almost surely, 2^4200005525 is an apocalyptic number.

It is an amenable number.

4200005525 is a deficient number, since it is larger than the sum of its proper divisors (1034444047).

4200005525 is a wasteful number, since it uses less digits than its factorization.

4200005525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853000 (or 852995 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 4200005525 is about 64807.4496103650. The cubic root of 4200005525 is about 1613.4293534999.

Adding to 4200005525 its reverse (5255000024), we get a palindrome (9455005549).

The spelling of 4200005525 in words is "four billion, two hundred million, five thousand, five hundred twenty-five".