1530025541 has 4 divisors (see below), whose sum is σ = 1669118784. Its totient is φ = 1390932300.

The previous prime is 1530025531. The next prime is 1530025603. The reversal of 1530025541 is 1455200351.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1455200351 = 11 ⋅132290941.

It is a cyclic number.

It is not a de Polignac number, because 1530025541 - 2⁶ = 1530025477 is a prime.

It is a super-2 number, since 2×1530025541² = 4681956312224685362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1530025541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530025501) 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, 69546605 + ... + 69546626.

It is an arithmetic number, because the mean of its divisors is an integer number (417279696).

Almost surely, 2^1530025541 is an apocalyptic number.

1530025541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1530025541 is a deficient number, since it is larger than the sum of its proper divisors (139093243).

1530025541 is a wasteful number, since it uses less digits than its factorization.

1530025541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139093242.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1530025541 is about 39115.5409140664. The cubic root of 1530025541 is about 1152.3017644091.

Adding to 1530025541 its reverse (1455200351), we get a palindrome (2985225892).

The spelling of 1530025541 in words is "one billion, five hundred thirty million, twenty-five thousand, five hundred forty-one".