1513240525 has 6 divisors (see below), whose sum is σ = 1876418282. Its totient is φ = 1210592400.

The previous prime is 1513240523. The next prime is 1513240543. The reversal of 1513240525 is 5250423151.

It can be written as a sum of positive squares in 3 ways, for example, as 102637161 + 1410603364 = 10131^2 + 37558^2 .

It is not a de Polignac number, because 1513240525 - 2¹ = 1513240523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1513240493 and 1513240502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513240523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30264786 + ... + 30264835.

Almost surely, 2^1513240525 is an apocalyptic number.

It is an amenable number.

1513240525 is a deficient number, since it is larger than the sum of its proper divisors (363177757).

1513240525 is an equidigital number, since it uses as much as digits as its factorization.

1513240525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60529631 (or 60529626 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1513240525 is about 38900.3923502064. The cubic root of 1513240525 is about 1148.0725178992.

Adding to 1513240525 its reverse (5250423151), we get a palindrome (6763663676).

The spelling of 1513240525 in words is "one billion, five hundred thirteen million, two hundred forty thousand, five hundred twenty-five".