4512020525 has 6 divisors (see below), whose sum is σ = 5594905482. Its totient is φ = 3609616400.

The previous prime is 4512020479. The next prime is 4512020531. The reversal of 4512020525 is 5250202154.

It can be written as a sum of positive squares in 3 ways, for example, as 77284 + 4511943241 = 278^2 + 67171^2 .

It is not a de Polignac number, because 4512020525 - 2²⁸ = 4243585069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4512020494 and 4512020503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90240386 + ... + 90240435.

It is an arithmetic number, because the mean of its divisors is an integer number (932484247).

Almost surely, 2^4512020525 is an apocalyptic number.

It is an amenable number.

4512020525 is a deficient number, since it is larger than the sum of its proper divisors (1082884957).

4512020525 is a wasteful number, since it uses less digits than its factorization.

4512020525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180480831 (or 180480826 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 4512020525 is about 67171.5752755583. The cubic root of 4512020525 is about 1652.4323507530.

Adding to 4512020525 its reverse (5250202154), we get a palindrome (9762222679).

The spelling of 4512020525 in words is "four billion, five hundred twelve million, twenty thousand, five hundred twenty-five".