1530535268725 has 6 divisors (see below), whose sum is σ = 1897863733250. Its totient is φ = 1224428214960.

The previous prime is 1530535268723. The next prime is 1530535268791. The reversal of 1530535268725 is 5278625350351.

It can be written as a sum of positive squares in 3 ways, for example, as 54584845956 + 1475950422769 = 233634^2 + 1214887^2 .

It is not a de Polignac number, because 1530535268725 - 2¹ = 1530535268723 is a prime.

It is a super-2 number, since 2×1530535268725² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530535268723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30610705350 + ... + 30610705399.

Almost surely, 2^{1530535268725} is an apocalyptic number.

It is an amenable number.

1530535268725 is a deficient number, since it is larger than the sum of its proper divisors (367328464525).

1530535268725 is an equidigital number, since it uses as much as digits as its factorization.

1530535268725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61221410759 (or 61221410754 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 1530535268725 in words is "one trillion, five hundred thirty billion, five hundred thirty-five million, two hundred sixty-eight thousand, seven hundred twenty-five".