1020616525 has 6 divisors (see below), whose sum is σ = 1265564522. Its totient is φ = 816493200.

The previous prime is 1020616523. The next prime is 1020616543. The reversal of 1020616525 is 5256160201.

1020616525 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 87497316 + 933119209 = 9354^2 + 30547^2 .

It is not a de Polignac number, because 1020616525 - 2¹ = 1020616523 is a prime.

It is a super-2 number, since 2×1020616525² = 2083316182206151250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020616493 and 1020616502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020616523) by changing a digit.

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, 20412306 + ... + 20412355.

Almost surely, 2^1020616525 is an apocalyptic number.

It is an amenable number.

1020616525 is a deficient number, since it is larger than the sum of its proper divisors (244947997).

1020616525 is an equidigital number, since it uses as much as digits as its factorization.

1020616525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40824671 (or 40824666 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1020616525 is about 31947.0894605440. The cubic root of 1020616525 is about 1006.8254818048.

Adding to 1020616525 its reverse (5256160201), we get a palindrome (6276776726).

The spelling of 1020616525 in words is "one billion, twenty million, six hundred sixteen thousand, five hundred twenty-five".