1530025613 has 4 divisors (see below), whose sum is σ = 1565607648. Its totient is φ = 1494443580.

The previous prime is 1530025603. The next prime is 1530025631. The reversal of 1530025613 is 3165200351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1530025613 - 2¹⁰ = 1530024589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530025603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17790953 + ... + 17791038.

It is an arithmetic number, because the mean of its divisors is an integer number (391401912).

Almost surely, 2^1530025613 is an apocalyptic number.

It is an amenable number.

1530025613 is a deficient number, since it is larger than the sum of its proper divisors (35582035).

1530025613 is an equidigital number, since it uses as much as digits as its factorization.

1530025613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35582034.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1530025613 is about 39115.5418344167. The cubic root of 1530025613 is about 1152.3017824841.

Adding to 1530025613 its reverse (3165200351), we get a palindrome (4695225964).

The spelling of 1530025613 in words is "one billion, five hundred thirty million, twenty-five thousand, six hundred thirteen".