2030521525 has 12 divisors (see below), whose sum is σ = 2536229412. Its totient is φ = 1612557440.

The previous prime is 2030521517. The next prime is 2030521529. The reversal of 2030521525 is 5251250302.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1739761 + 2028781764 = 1319^2 + 45042^2 .

It is not a de Polignac number, because 2030521525 - 2³ = 2030521517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 2030521525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030521529) 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, 293002 + ... + 299851.

It is an arithmetic number, because the mean of its divisors is an integer number (211352451).

Almost surely, 2^2030521525 is an apocalyptic number.

2030521525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2030521525 is a deficient number, since it is larger than the sum of its proper divisors (505707887).

2030521525 is a wasteful number, since it uses less digits than its factorization.

2030521525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593000 (or 592995 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2030521525 is about 45061.3085140678. The cubic root of 2030521525 is about 1266.2978394838.

Adding to 2030521525 its reverse (5251250302), we get a palindrome (7281771827).

The spelling of 2030521525 in words is "two billion, thirty million, five hundred twenty-one thousand, five hundred twenty-five".