30125543138753 has 4 divisors (see below), whose sum is σ = 30125594185860. Its totient is φ = 30125492091648.

The previous prime is 30125543138723. The next prime is 30125543138783. The reversal of 30125543138753 is 35783134552103.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (30125543138723) and next prime (30125543138783).

It can be written as a sum of positive squares in 2 ways, for example, as 19195325275009 + 10930217863744 = 4381247^2 + 3306088^2 .

It is a cyclic number.

It is not a de Polignac number, because 30125543138753 - 2¹² = 30125543134657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30125543138723) 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, 24627848 + ... + 25822121.

It is an arithmetic number, because the mean of its divisors is an integer number (7531398546465).

Almost surely, 2^{30125543138753} is an apocalyptic number.

It is an amenable number.

30125543138753 is a deficient number, since it is larger than the sum of its proper divisors (51047107).

30125543138753 is an equidigital number, since it uses as much as digits as its factorization.

30125543138753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51047106.

The product of its (nonzero) digits is 4536000, while the sum is 50.

The spelling of 30125543138753 in words is "thirty trillion, one hundred twenty-five billion, five hundred forty-three million, one hundred thirty-eight thousand, seven hundred fifty-three".