1513530625 has 10 divisors (see below), whose sum is σ = 1891308650. Its totient is φ = 1210824000.

The previous prime is 1513530607. The next prime is 1513530631. The reversal of 1513530625 is 5260353151.

It can be written as a sum of positive squares in 5 ways, for example, as 434013889 + 1079516736 = 20833^2 + 32856^2 .

It is not a de Polignac number, because 1513530625 - 2¹⁷ = 1513399553 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1210200 + ... + 1211449.

It is an arithmetic number, because the mean of its divisors is an integer number (189130865).

Almost surely, 2^1513530625 is an apocalyptic number.

It is an amenable number.

1513530625 is a deficient number, since it is larger than the sum of its proper divisors (377778025).

1513530625 is an frugal number, since it uses more digits than its factorization.

1513530625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421669 (or 2421654 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1513530625 is about 38904.1209256809. The cubic root of 1513530625 is about 1148.1458780273.

Adding to 1513530625 its reverse (5260353151), we get a palindrome (6773883776).

The spelling of 1513530625 in words is "one billion, five hundred thirteen million, five hundred thirty thousand, six hundred twenty-five".