1530522525 has 24 divisors (see below), whose sum is σ = 2891959744. Its totient is φ = 699667200.

The previous prime is 1530522517. The next prime is 1530522527. The reversal of 1530522525 is 5252250351.

It is not a de Polignac number, because 1530522525 - 2³ = 1530522517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1530522492 and 1530522501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530522527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1457116 + ... + 1458165.

Almost surely, 2^1530522525 is an apocalyptic number.

1530522525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530522525 is a deficient number, since it is larger than the sum of its proper divisors (1361437219).

1530522525 is a wasteful number, since it uses less digits than its factorization.

1530522525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915301 (or 2915296 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 1530522525 is about 39121.8931673814. The cubic root of 1530522525 is about 1152.4265147330.

Adding to 1530522525 its reverse (5252250351), we get a palindrome (6782772876).

The spelling of 1530522525 in words is "one billion, five hundred thirty million, five hundred twenty-two thousand, five hundred twenty-five".